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Srivastava, Pragati, Sushil Chandra, Rajeev Sonkar, Mr Sanghmitra i Miss Ayushi. "Development of Android-Based Mobile Application Using Gyroscope Sensor". International Journal of Innovative Research in Computer Science & Technology 10, nr 6 (2022): 138–41. http://dx.doi.org/10.55524/ijircst.2022.10.6.21.
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The idea of this project comes into the picture from various uses of sensors that are present in our surroundings. So, we can actually play with them by using two or more sensor mechanisms that end up as new inventions. Therefore, we are keen to look forward to one of the highly scoped and well-furnished sensors i.e., Gyroscope Sensor with an element of Light Sensor. This sensor is capable of measuring the orientation of the body and the angular velocity of the object. In our android project, we embedded the flashlight feature in the Gyro sensor’s angle alteration logic. This mechanism successfully leads to the flashlight of the camera getting ON & OFF when the device is tilted or shifted along the reference angle. This collaboration of sensors plays an important role for a device that does not have that feature.
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Guo, Yixuan, i Gaoyang Liang. "Perceptual Feedback Mechanism Sensor Technology in e-Commerce IoT Application Research". Journal of Sensors 2021 (28.09.2021): 1–12. http://dx.doi.org/10.1155/2021/3840103.
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With the development of sensor technology and the Internet of Things (IoT) technology, the trend of miniaturization of sensors has prompted the inclusion of more sensors in IoT, and the perceptual feedback mechanism among these sensors has become particularly important, thus promoting the development of multiple sensor data fusion technologies. This paper deeply analyzes and summarizes the characteristics of sensory data and the new problems faced by the processing of sensory data under the new trend of IoT, deeply studies the acquisition, storage, and query of sensory data from the sensors of IoT in e-commerce, and proposes a ubiquitous storage method for massive sensory data by combining the sensory feedback mechanism of sensors, which makes full use of the storage resources of IoT storage network elements and maximally meets the massive. In this paper, we propose a ubiquitous storage method for massive sensing data, which makes full use of the storage resources of IoT storage network elements to maximize the storage requirements of massive sensing data and achieve load-balanced data storage. In this paper, starting from the overall development of IoT in recent years, the weak link of intelligent information processing is reinforced based on the sensory feedback mechanism of sensor technology.
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Sun, Yifan, Dunzhu Li, Yunhong Shi, Zeena Wang, Saviour I. Okeke, Luming Yang, Wen Zhang, Zihan Zhang, Yanqi Shi i Liwen Xiao. "Application of 3D Printing Technology in Sensor Development for Water Quality Monitoring". Sensors 23, nr 5 (21.02.2023): 2366. http://dx.doi.org/10.3390/s23052366.
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The development of sensors for water quality monitoring is crucial to protect water quality, aquatic biota and human health. Traditional sensor manufacturing methods have significant drawbacks, such as low fabrication freedom, limited material choice and expensive manufacturing cost. As a possible alternative method, 3D printing technologies are increasingly popular in sensor development due to their high versatility, fast fabrication/modification, powerful processing of different materials and ease of incorporation with other sensor systems. Surprisingly, a systematic review examining the application of 3D printing technology in water monitoring sensors has not yet been conducted. Here, we summarized the development history, market share and advantages/disadvantages of typical 3D printing techniques. Specifically focused on the 3D-printed sensor for water quality monitoring, we then reviewed the applications of 3D printing in the development of sensors’ supporting platform, cell, sensing electrode as well as all-3D-printed sensors. The fabrication materials and processing, and the sensor’s performances regarding detected parameters, response time and detection limit/sensitivity, were also compared and analyzed. Finally, the current drawbacks of 3D-printed water sensors and potential directions for future study were discussed. This review will substantially promote the understanding of 3D printing technology used in water sensor development and benefit the protection of water resources.
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Duan, Xiu Sheng, i Jing Xiao. "Research Status and Development of the Circuit System of Giant Magneto-Impedance Sensor". Applied Mechanics and Materials 494-495 (luty 2014): 951–54. http://dx.doi.org/10.4028/www.scientific.net/amm.494-495.951.
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Giant Magneto-Impedance (GMI) sensor is a new type of magnetic sensors. Comparing with traditional sensors, GMI sensor has the advantages of high sensitivity, good reliability, wide measuring range and small size and is potential in resisting harsh environment. In the paper, circuit systems both in overseas and domestic researches are analyzed, shortcomings of the systems are pointed out and some improvement ideas are presented. At last, elaborate the development trends of GMI sensor's circuit system to find a practical solution for data processing technology.
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Feng, Kai-di, Zhenzhen Wang i Yan Yang. "Development of medical imaging sensors". International Journal of Distributed Sensor Networks 16, nr 1 (styczeń 2020): 155014772090360. http://dx.doi.org/10.1177/1550147720903607.
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This review describes sensor technologies for medical imaging. Medical imaging plays an extremely important role in medical imaging, and sensor technology affects the quality of imaging results. By analyzing the research progress of sensors used in various imaging technologies, the result that sensors applied to medical imaging will gradually achieve mutual coupling between various technologies was summed up, such as the coupling of flexible electrodes and dry electrodes, in ultrasound. Photoacoustic technology and thermoacoustic technology based on technology coupled with other technologies. In addition to the coupling between multiple technologies, sensor technology is also moving toward miniaturization, intelligence, and netting.
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Liu, Ji. "Automobile Sensor Technology Development and Application Research". Applied Mechanics and Materials 727-728 (styczeń 2015): 704–7. http://dx.doi.org/10.4028/www.scientific.net/amm.727-728.704.
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This paper introduces the developing course of auto sensor and impetus, automotive electronic system in various sensors practical level, gives the best technical index, and the current sensor in the application of automotive electronic control system, and shows the development trend of the automotive sensors and the forecast, points out the development direction of modern sensor technology is integrated and intelligent, likely has a huge market share in the future several kinds of new sensors, and finally the development of the automotive sensors are described briefly and the market forecast.
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Feng, Zhigang, Qi Wang i Katsunori Shida. "A review of self‐validating sensor technology". Sensor Review 27, nr 1 (30.01.2007): 48–56. http://dx.doi.org/10.1108/02602280710723488.
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PurposeTo provide an overview of self‐validating sensor technology for researchers and engineers which can help them understand the concept and recent developments of this research area.Design/methodology/approachThe concept of self‐validating (SEVA) sensors, including definition, output parameters and requirement of SEVA sensors are introduced. The differences between SEVA sensors and traditional sensors are given from which we can see many advantages of SEVA sensors. The principium of SEVA sensors is presented by the functional architecture. The research development of SEVA sensors is introduced in two aspects: research development of sensor fault diagnosis and signal reconstruction and research development of SEVA sensor hardware.FindingsSummarizes the methods for sensor fault diagnosis and signal reconstruction in the research of SEVA sensors, and the development steps of SEVA sensor hardware. Indicates the shortages and problems of current research and gives our research and ideas to solve these problems.Originality/valueThis paper provides a detailed description and research information of self‐validating sensor technology for those who want to know and research on this area.
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Syamimi, Nor, i Shuhaida Yahud. "General design criteria for neonatal temperature monitoring sensor using "smart material" conducting polymer development: A review". Applied Research and Smart Technology (ARSTech) 2, nr 1 (23.06.2021): 18–26. http://dx.doi.org/10.23917/arstech.v2i1.185.
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Surface thermistors are being currently used in patient monitoring, including temperature monitoring among neonates. However, these thermistors are reported as being mechanically rigid. This review article aims to provide researchers with a guide to better design a flexible neonatal temperature monitoring sensor. A literature search was conducted to obtain available literature on temperature sensors with specific attention to designing flexible temperature sensors. The achievement of a flexible type thermistor for neonates requires a basic understanding of the thermistor. Also, the conducting polymer material being used and the rationale for their placement. The updated technology in thermistors should be made flexible for the ease of neonates during monitoring. Careful considerations for the design and conduct of flexible temperature sensor research as outlined in this review would help to enhance the quality and comparability of future research studies. Considerations for efficient neonatal temperature monitoring and protection include accuracy, sensor's size, weight, material, and sensor placement. Flexible sensors could be the alternative to conventional bulky and stiff temperature sensors.
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Et. al., M. Hyndhavi,. "DEVELOPMENT OF VEHICLE TRACKING USING SENSOR FUSION". INFORMATION TECHNOLOGY IN INDUSTRY 9, nr 2 (1.04.2021): 731–39. http://dx.doi.org/10.17762/itii.v9i2.406.
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The development of vehicle tracking using sensor fusion is presented in this paper. Advanced driver assistance systems (ADAS) are becoming more popular in recent years. These systems use sensor information for real-time control. To improve the standard and robustness, especially in the presence of environmental noises like varying lighting, weather conditions, and fusion of sensors has been the center of attention in recent studies. Faced with complex traffic conditions, the single sensor has been unable to meet the security requirements of ADAS and autonomous driving. The common environment perception sensors consist of radar, camera, and lidar which have both pros and cons. The sensor fusion is a necessary technology for autonomous driving which provides a better vision and understanding of vehicles surrounding. We mainly focus on highway scenarios that enable an autonomous car to comfortably follow other cars at various speeds while keeping a secure distance and mix the advantages of both sensors with a sensor fusion approach. The radar and vision sensor information are fused to produce robust and accurate measurements. And the experimental results indicate that the comparison of using only radar sensors and sensor fusion of both camera and radar sensors is presented in this paper. The algorithm is described along with simulation results by using MATLAB.
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Murayama, Hideaki, Kazuro Kageyama, Isamu Ohsawa, Makoto Kanai, Kiyhoshi Uzawa i Tsuyoshi Matsuo. "Development of Smart Composite Panel with Optical Fiber Sensors". Key Engineering Materials 297-300 (listopad 2005): 659–64. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.659.
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We have developed a novel fiber-optic vibration sensors and applied commercially available strain and temperature sensors to health monitoring of composite structures. In this study, we constructed an optical fiber network integrating four types of optical fiber sensor into a carbon reinforced plastic (CFRP) panel. These four sensors were the vibration sensor developed by our laboratory, two distributed sensors based on Brillouin and Raman backscattering and Fiber Bragg Grating (FBG) sensors. By dealing the data obtained from the measurement systems corresponding to these four sensors, strain/stress and temperature distributions throughout the panel can be monitored. Vibration and elastic waves transmitting on the panel are also detected at several sensing points. Furthermore, we will be able to determine damage locations and modes by processing the wave signals. To make the panel with the optical fiber sensor network more sensitive and smarter, we are developing some techniques that can improve the performance of the sensors and can assess the structural integrity by analyzing measurement results. In this paper, the development of the first generation of our smart composite panel with the optical fiber sensors is described and the techniques making the panel more sensitive and smarter are also described.
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Pei, Qiang, Pengfei Qi, Yunhua Lu i Le Qin. "Development and Verification of Wireless Vibration Sensors". Buildings 13, nr 7 (28.06.2023): 1648. http://dx.doi.org/10.3390/buildings13071648.
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Structural vibration testing is an effective guarantee for the Structural Health Monitoring (SHM) of large-scale civil engineering. Traditional vibration testing has drawbacks such as difficulties in wiring and picking up low-frequency signals, low communication speed, and susceptibility to testing site conditions. In order to improve the universality of wireless vibration sensors, this article develops a wireless vibration sensor, introduces the module composition and basic principles of the sensor, and conducts standard vibration table performance comparison tests between wired acceleration sensors and wireless vibration sensors, verifying the accuracy of wireless vibration sensors. In order to further explore the feasibility of wireless vibration sensor applications, the wired acceleration sensor and wireless vibration sensor were used to analyze the structural dynamic characteristics of the four-layer steel frame structure model in the laboratory, and the comparison was made based on ABAQUS finite element simulation. Finally, the field vibration test was carried out outdoors. The results show that the natural frequency identification results of the wireless vibration sensor and the wired acceleration sensor for the four-story steel frame structure through fast Fourier transform, short-time Fourier transform, and wavelet transform are basically the same, the half-power bandwidth method and logarithmic decrement rate method are used to identify the damping, and wavelet transform is used to identify the vibration mode with minimal error and high accuracy. It shows that the wireless vibration sensor is feasible in practical engineering, has stable and reliable transmission capacity, and can provide certain reference values for earthquake monitoring, building Structural Health Monitoring, etc.
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Leal-Junior, Arnaldo, Guilherme Lopes i Carlos Marques. "Development and Analysis of Multifeature Approaches in SPR Sensor Development". Photonics 10, nr 6 (19.06.2023): 694. http://dx.doi.org/10.3390/photonics10060694.
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This paper presents the development and signal analysis of surface plasmon resonance (SPR)-based sensors in D-shaped polymer optical fibers (POFs). A gold-palladium (Au-Pd) coating was applied to the D-shaped region to obtain the SPR signal in the transmitted spectrum of the POFs, where different samples were fabricated using the same methods and parameters. In this case, the transmitted spectra of three sets of samples were compared, which indicated variations in the SPR signature that can influence the sensors’ application and reproducibility. Then, the intensity of and wavelength shift in the SPR signals were analyzed as a function of the refractive index variation, where it was possible to observe differences in the sensors’ sensitivities and the linearity of the different samples. In this regard, additional features, namely the area below the curve and the peak amplitude of the fast Fourier transform (FFT) applied to the transmitted spectra, were used to enhance the sensors’ accuracy and precision. To verify the use of such additional features in the sensor analysis, an unsupervised approach based on k-means clustering was used considering a single dataset with the results of all the sensors. The results showed clustering with the number of different refractive indices tested, which motivated the use of these features (intensity, wavelength, area and FFT amplitude) in the refractive index assessment. In this context, random forest was the supervised algorithm with the smallest root mean squared error (RMSE) among the algorithms tested, where an RMSE of 0.0057 was obtained considering all the datasets. For the analysis of each sensor (considering the three sets of sensor samples), the mean RMSE using random forest applied to the multifeature approach returned relative errors below 9%, considering the entire tested range of refractive index variation.
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Balakarim Huseynov, Tarana Zeynalova, Balakarim Huseynov, Tarana Zeynalova. "DEVELOPMENT OF THE "SMART HOUSE" CONTROL SYSTEM". PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 10, nr 06 (10.10.2021): 80–86. http://dx.doi.org/10.36962/pahtei1006202180.
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The proposed system allows you to control the parameters of the house using a remote control system. Changes in temperature and humidity in the house are monitored by telephone. The entire lighting system of the house is controlled. If a gas leak or fire occurs in the house, an alarm is triggered and a notification is sent to the phone. If there is unauthorized access to the house, this is detected by a motion sensor and a notification is sent to the phone. Changes in the apartment, which is "under the control" of the system, can be monitored and managed in the "Serial Monitor" section. Selected optical sensors are sensors that capture an optical image and work by analyzing the darkest and brightest parts of the image using algorithms. The level of security increases depending on the sensor's sensing element, so the higher the sensor's resolution, the better the image details. The ultrasonic signal is transmitted to the finger located on the scanner. Due to the presence of pores and other details that are characteristic of each fingerprint, part of this signal is absorbed, and part is returned to the sensor. As a result, the sensor can recognize fingerprints. Password authorization. A password based door lock system is an access control system that allows only authorized persons to enter a restricted area. When an authorized person enters the user ID and password from the keyboard, the door opens and after a few minutes the door closes again. If the code is entered incorrectly three times in a row, the code lock will go into blocking mode. Keywords: "smart house", control system, temperature sensor, motion sensor, telediagnostics, telecontrol.
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Truong, TranThuyNga, Ji-Seon Kim i Jooyong Kim. "Development of Embroidery-Type Pressure Sensor Dependent on Interdigitated Capacitive Method". Polymers 14, nr 17 (23.08.2022): 3446. http://dx.doi.org/10.3390/polym14173446.
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Many studies have been conducted to develop electronic skin (e-skin) and flexible wearable textiles which transform into actual “skin”, using different approaches. Moreover, many reports have investigated self-healing materials, multifunctional sensors, etc. This study presents a systematic approach to embroidery pressure sensors dependent on interdigitated capacitors (IDCs), for applications surrounding intelligent wearable devices, robots, and e-skins. The method proposed a broad range of highly sensitive pressure sensors based on porous Ecoflex, carbon nanotubes (CNTs), and interdigitated electrodes. Firstly, characterizations of ICDs embroidering on a cotton fabric using silver conductive thread are evaluated by a precision LCR meter throughout the frequency range from 1 kHz to 300 kHz. The effect of thread density on the performance of embroidered sensors is included. Secondly, the 16451B dielectric test fixture from Keysight is utilized to evaluate the composite samples’ dielectric constant accurately. The effect of frequency on sensor performance was evaluated to consider the influence of the dielectric constant as a function of the capacitance change. This study shows that the lower the frequency, the higher the sensitivity, but at the same time, it also leads to instability in the sensor’s operation. Thirdly, assessing the volume fraction of CNTs on composites’ properties is enclosed. The presence of volume portion CNTs upgrades the bond strength of composites and further develops sensor deformability. Finally, the presented sensor can accomplish excellent performance with an ultra-high sensitivity of 0.24 kPa−1 in low pressure (<25 kPa) as well as a wide detection range from 1 to 1000 kPa, which is appropriate for general tactile pressure rages. In order to achieve high sensor performance, factors such as density, frequency, fabric substrate, and the structure of the dielectric layer need to be carefully evaluated.
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Lin, Yung Chin, Kuo Lan Su i Cheng Yun Chung. "Development of Intelligent Fire Detection Module Using Optic-Sensors". Applied Mechanics and Materials 300-301 (luty 2013): 440–43. http://dx.doi.org/10.4028/www.scientific.net/amm.300-301.440.
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The paper proposes an adaptive fusion algorithm using competitiveness sensors for fire detection module, and uses computer simulation results to select the optimal weight values for each optic-sensor. Then we design the fire detection module using the tuned weight values of optic-sensors. The competitiveness flame sensor type is ultra-violet sensor (R2868). The controller of the module is HOLTEK microchip, and acquires the detection signals from the optic-sensors through I/O pins, and transmits the detection signals of all sensors to the computer via wire series interface. The adaptive fusion algorithm can tunes weight values according to decision output of the fusion center. The fusion algorithms of the fusion center use Bayesian estimated method to decide the fire event to be true or not. We set the improved weight values in the module for each optic-sensor. From the simulation and experimental implementation results, it demonstrates that the proposed algorithms can compute the adequate weight values.
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Cypher, Quinn, Amy Fulcher, Wesley C. Wright, Xiaocun Sun i Lauren Fessler. "Leachate and Irrigation Sensor Development and Performance in Container Nursery Production". Applied Engineering in Agriculture 37, nr 1 (2021): 65–75. http://dx.doi.org/10.13031/aea.14080.
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HighlightsUsing leaching fraction to schedule irrigation is recommended yet no automated measurement system exists.Sensors were developed to automatically measure leachate and irrigation within a sensor network.There was no difference between sensor measured and manually captured volume for sensors deployed in a nursery.After deployment in commercial nurseries, sensors accurately measured leachate and irrigation within 10% margin.Abstract. Nursery crops are often over-irrigated, resulting in wasted water and agrochemical inputs. Irrigating based on leaching fraction is recommended, yet an automated system for measuring and recording nursery container effluent (leachate) does not exist. The objective of this research was to develop and test a sensor-based system for real-time leachate and irrigation measurement in outdoor commercial nurseries. Sensors were developed to automatically measure irrigation and leachate volume in container nurseries that use overhead irrigation with the goal of facilitating the development of an automated leaching fraction-based irrigation system. Sensors were built using readily available components, including tipping bucket mechanisms calibrated to either 4.7 or 8.2 mL per tip, and were designed and constructed to function with commonly used 3.8-, 11.4-, and 14.5-L nursery containers. Sensor networks were developed in order to collect data from the sensors. Sensors were deployed at three commercial nurseries and tested using closed- and open-loop tests. Initially, a closed-loop test was performed on a subset of the sensors to test the integrity of the sensor-container system when subjected to an overhead irrigation delivery system. Following closed-loop tests, sensors were subjected to tests utilizing directed applications of water to compare sensor measurements with the volume of water applied and to compare sensor measurements over time (pre- and post-season). There was no difference between leachate measured by sensors and leachate captured and measured manually in closed-loop tests (p = 0.0570). In directed applications, sensors measured water flow with less than 3% margin at the beginning of the season (p = 0.0485) and less than 10% margin at the end of the season (p = 0.0390) regardless of container size. Pre- and post-season comparisons showed equivalence at the 10% margin for the 4.7-mL tipping bucket size (p = 0.0043) and at 5% for those calibrated to 8.2 mL per tip (p = 0.0198). Sensors deployed in commercial nurseries accurately measured leachate and irrigation within a 10% margin in real-time, on an individual plant scale, making them a viable option for a leaching fraction-based irrigation schedule. Keywords: Container effluent, Container-grown plants, Leaching fraction, Irrigation schedule, Sensor network.
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Li, Nan, Dong Tang, Chang Yuan Li i Lie Chen. "Research on Development and Application of New Particulate Matter Sensor". Applied Mechanics and Materials 336-338 (lipiec 2013): 196–99. http://dx.doi.org/10.4028/www.scientific.net/amm.336-338.196.
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Because the stricter emission regulations of diesel engine particulate matter are continuously presented, the new type sensors for diesel on-board diagnostics (OBD) are needed to detect PM emissions accurately. Sufficient heat resistance and endurance, ability to endure the harsh environment of the exhaust are necessary for these sensors. The working principles of several kinds of sensors are introduced in this paper. The flow field is simulated for resistive soot sensor, the forcible soot collection method is introduced for the capacitance PM sensor and the electrode of electrochemical sensor added ionomer is analyzed. At the same time, the application of the sensor is introduced for the future.
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Kurnyta, Artur, Krzysztof Dragan i Michal Dziendzikowski. "Assessment of Sensor Technologies for Aircraft SHM Systems". Fatigue of Aircraft Structures 2013, nr 5 (21.08.2014): 53–59. http://dx.doi.org/10.2478/fas-2013-0005.
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Abstract SHM is a monitoring system which uses sensors, actuators and data transmission, acquisition and analysis, permanently integrated with the inspected object. The objective of SHM is to detect, localize, identify and predict development of fatigue fractures, increasing safety and reliability. This paper presents an assessment of sensor technologies used in aircraft SHM system. Due to the fact that most of these measurement methods are relatively new and still under development the present appraisal focuses on a number of parameters with reference to each method, including a sensor’s installation issues, reliability, power consumption, sensor infrastructure, sensitivity and cost and availability. The work is predominantly focused on the assessment ofpermanently bonded sensors, such as foil strain gages, Comparative Vacuum Monitoring (CVM), Piezo sensors (PZT), Eddy-Current Transducers (ECT). Finally, all these methods are briefly discussed.
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Zhu, Jianxiong, Xinmiao Liu, Qiongfeng Shi, Tianyiyi He, Zhongda Sun, Xinge Guo, Weixin Liu, Othman Bin Sulaiman, Bowei Dong i Chengkuo Lee. "Development Trends and Perspectives of Future Sensors and MEMS/NEMS". Micromachines 11, nr 1 (18.12.2019): 7. http://dx.doi.org/10.3390/mi11010007.
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With the fast development of the fifth-generation cellular network technology (5G), the future sensors and microelectromechanical systems (MEMS)/nanoelectromechanical systems (NEMS) are presenting a more and more critical role to provide information in our daily life. This review paper introduces the development trends and perspectives of the future sensors and MEMS/NEMS. Starting from the issues of the MEMS fabrication, we introduced typical MEMS sensors for their applications in the Internet of Things (IoTs), such as MEMS physical sensor, MEMS acoustic sensor, and MEMS gas sensor. Toward the trends in intelligence and less power consumption, MEMS components including MEMS/NEMS switch, piezoelectric micromachined ultrasonic transducer (PMUT), and MEMS energy harvesting were investigated to assist the future sensors, such as event-based or almost zero-power. Furthermore, MEMS rigid substrate toward NEMS flexible-based for flexibility and interface was discussed as another important development trend for next-generation wearable or multi-functional sensors. Around the issues about the big data and human-machine realization for human beings’ manipulation, artificial intelligence (AI) and virtual reality (VR) technologies were finally realized using sensor nodes and its wave identification as future trends for various scenarios.
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Schütze, Andreas, Nikolai Helwig i Tizian Schneider. "Sensors 4.0 – smart sensors and measurement technology enable Industry 4.0". Journal of Sensors and Sensor Systems 7, nr 1 (9.05.2018): 359–71. http://dx.doi.org/10.5194/jsss-7-359-2018.
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Abstract. “Industrie 4.0” or the Industrial Internet of Things (IIoT) are two terms for the current (r)evolution seen in industrial automation and control. Everything is getting smarter and data generated at all levels of the production process are used to improve product quality, flexibility, and productivity. This would not be possible without smart sensors, which generate the data and allow further functionality from self-monitoring and self-configuration to condition monitoring of complex processes. In analogy to Industry 4.0, the development of sensors has undergone distinctive stages culminating in today's smart sensors or “Sensor 4.0”. This paper briefly reviews the development of sensor technology over the last 2 centuries, highlights some of the potential that can be achieved with smart sensors and data evaluation, and discusses success requirements for future developments. In addition to magnetic sensor technologies which allow self-test and self-calibration and can contribute to many applications due to their wide spectrum of measured quantities, the paper discusses condition monitoring as a primary paradigm for introducing smart sensors and data analysis in manufacturing processes based on two projects performed in our group.
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Zhao, Jie, Liang Ma, Ji Hong Yan i Yong Sheng Gao. "Development of Omni-Directional Mobile Manipulator". Advanced Materials Research 443-444 (styczeń 2012): 569–75. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.569.
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An Omni-directional mobile manipulator with capability of zero-radius rotation is developed. Mechanism structure of the mobile platform and the manipulator are introduced, and the wheel model of the robot is designed with differential compensation structure. Multi-sensor system comprising ultrasonic sensors, infrared sensors and force/torque sensor are used for achieving precise control for the robot. Meanwhile, motion control of the mobile platform is analyzed, and servo control based on hierarchical structure of the manipulator is proposed. Finally, experiments of the robot are executed, and the results show the error of the platform for forward 4m is 8mm approximately after corrected by ultrasonic sensors, average error of zero-radius rotation is 3.7658mm, average error of re-orientation motion is 0.3mm, which verify the proposed omni-directional mobile manipulator designed reasonable, and can achieve precise operation effectively.
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Sanati, Mehdi, Allen Sandwell, Hamid Mostaghimi i Simon Park. "Development of Nanocomposite-Based Strain Sensor with Piezoelectric and Piezoresistive Properties". Sensors 18, nr 11 (6.11.2018): 3789. http://dx.doi.org/10.3390/s18113789.
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Sensors provide aninterface between mechanical systems and the physical world. With the move towardsIndustry 4.0 and cyber-physical systems, demands for cost-effective sensors are rapidly increasing. Conventional sensors used for monitoring manufacturing processes are often bulky and need complex processes. In this study, a novel high-sensitive nanocomposite-based sensor is developed for measuring strain. The developed sensor is comprised of polyvinylidene fluoride (PVDF) as a piezoelectric polymer matrix, and embedded carbon nanotube (CNT) nanoparticles creating a conductive network. Exhibiting both piezoelectric and piezoresistive properties, the developed sensors are capable of strain measurement over a wide frequency band, including static and dynamic measurements. The piezoresistive and piezoelectric properties are fused to improve the overall sensitivity and frequency bandwidth of the sensor. To simulate the sensor, a 3D random walk model and a 2D finite element (FE) model are used to predict the electrical resistivity and the piezoelectric characteristics of the sensor, respectively. The developed models are verified with the experimental results. The developed nanocomposite sensors were employed for strain measurement of a cantilever beam under static load, impulse excitation, free and forced vibrations, collecting both piezoelectric and piezoresistive properties measurements. The obtained signals were fused and compared with those of a reference sensor. The results show that the sensor is capable of strain measurement in the range of 0–10 kHz, indicating its effectiveness at measuring both static and high frequency signals which is an important feature of the sensor.
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Samoylov, A. V. "Trends in the development of sensor devices based on surface plasmon resonance (Review)". Optoelektronìka ta napìvprovìdnikova tehnìka 56 (7.12.2021): 5–26. http://dx.doi.org/10.15407/iopt.2021.56.005.
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Trends in the development of modern sensory devices based on surface plasmon resonance (SPR) are considered. The basic principles of construction of SPR sensor are given. For excitation of surface plasmons on the surface of sensitive elements of biosensory, a prism of total internal reflection is used or a dielectric substrate are used. A thin (dozens nm) film of high-conductive metal (mainly gold or silver) is applied to the working surface of the prisms or dielectric substrate. In a typical observation experiment, SPR is measured dependence on the angle of increasing light intensity, reflected by the resonance sensitive surface of the prism (chip). The optical schemes and principles of work of various SPR sensors are considered: - SPR Sensors with angular modulation, which are the most commonly used method based on the corner registration, in which the SPR occurs. The surface of the metal film is irradiated by monochromatic light and scans on a certain range of angles. There is a kind of SPR sensors with angular modulation, in which there is no mechanical scan of the angle of fall. Such sensors are entirely necessary for excitation of PPRs a set of angles is obtained due to a divergent or convergent light beam. - PPR sensors with a wavelength modulation is based on fixing an angle of falling light at a certain value and modulation of the wavelength of the incident light. Excitation of surface plasmons leads to a characteristic failure in the spectrum of reflected radiation. - Phase sensitive SPR sensors in which a change in the phase of the light wave associated with the surface plasma is measured on one corner of the fall and the wavelength of the light wave and is used as the output signal. - SPR imaging sensors in which the Technology of SPR imaging (SPRi) combines the sensitivity of the SPR with spatial image capabilities. The SPRI circuit uses as a fixed angle (as a rule, a slightly left angle of the SPR) and a fixed wavelength to measure changes in the reflection ability (Δ% R) that occur when the curve of the SPR is shifted due to the change in the refractive index above the surface of the sensor element. - SPR imaging sensors polarization contrast. In order to improve the quality of high-performance SPR imaging sensors in terms of sensitivity and resolution, the method of polarization contrast is used Disadvantages and advantages of SPR sensors are constructed with different principles are considered. The design and prospect of the use of achromatic and suburchast wave plates in the PPR imaging sensors with polarization contrast are considered.
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Mohamad Nor, Alif Syarafi, Mohd Amri Md Yunus, Sophan Wahyudi Nawawi, Sallehuddin Ibrahim i Mohd Fua'ad Rahmat. "Development of planar electromagnetic sensor array for nitrate and sulphate detection in natural water sources". Sensor Review 35, nr 1 (19.01.2015): 106–15. http://dx.doi.org/10.1108/sr-04-2014-633.
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Purpose – The purpose of this study is to determine the contamination level in natural water resources because the tremendous development in the agriculture sector has increased the amount of contamination in natural water sources. Hence, the water is polluted and unsafe to drink. Design/methodology/approach – Three types of sensor arrays were suggested: parallel, star and delta. The simulation of all types of sensor array was carried out to calculate the sensors’ impedance value, capacitance and inductance during their operation to determine the best sensor array. The contamination state was simulated by altering the electrical properties values of the environmental domain of the model to represent water contamination. Findings – The simulation results show that all types of sensor array are sensitive to conductivity, σ, and permittivity, ɛ (i.e. contaminated water). Furthermore, a set of experiments was conducted to determine the relationship between the sensor’s impedance and the water’s nitrate and sulphate contamination. The performance of the system was observed where the sensors were tested, with the addition of distilled water with different concentrations of potassium nitrate and potassium sulphate. The sensitivity of the developed sensors was evaluated and the best sensor was selected. Practical implications – Based on the outcomes of the experiments, the star sensor array has the highest sensitivity and can be used to measure nitrate and sulphate contaminations in water. Originality/value – The star sensor array presented in this paper has the potential to be used as a useful low-cost tool for water source monitoring.
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Moon, Young Sik, Hyung Rim Choi, Jae Joong Kim, Dong Wan Kim, Jae Hee Cho, Jun Woo Kim i Jun Woo Jeong. "Development of IoT-Based Sensor Tag for Smart Factory". International Research Journal of Electronics and Computer Engineering 3, nr 4 (31.12.2017): 28. http://dx.doi.org/10.24178/irjece.2017.3.4.28.
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To reduce the rate of defective products and ensure the health of employees, it has become increasingly necessary to improve air quality in factories. To do so, it is important to accurately determine the air quality in the factory first. However, currently available industry-grade sensors require complex and often separate construction processes, making them difficult to use in complicated industrial sites. In order to solve such an issue, this study developed an IoT-based sensor that can collect data such as factory temperature, humidity, CO2 levels, dust, and stench. This study has also developed software to manage the IoT-based sensors, which can transmit the data via RF communication. Sensor tags were tested for basic environmental durability, including waterproof, dustproof, and vibration standards. The sensors can be connected via USB to a computer to configure its settings and access the stored data within the sensors. Unlike other existing environmental sensors, these can be easily installed anywhere as they transmit data via wireless communication. These sensors can also be installed in the factory to check the factory’s internal pollution level in real time. The application of this sensor will enable the real-time monitoring of air pollution in factories. By locating the polluted areas accurately, it will be possible to exercise distributed control over ventilation devices to prevent further spread of pollutants, while also pushing out the polluted air to maintain an optimal working environment. Future studies should develop a simulation model for determining the ideal installation location for the sensors. There also needs to be further studies in developing a distributed-controlled air-conditioning system to run empirical tests.
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Wasif, Rukhshinda, Mohammad Osman Tokhi, Gholamhossein Shirkoohi, Ryan Marks i John Rudlin. "Development of Permanently Installed Magnetic Eddy Current Sensor for Corrosion Monitoring of Ferromagnetic Pipelines". Applied Sciences 12, nr 3 (20.01.2022): 1037. http://dx.doi.org/10.3390/app12031037.
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Permanently installed sensors are a cost-effective solution for corrosion monitoring due to their advantages, such as less human interference and continuous data acquisition. Some of the most widely used permanently installed corrosion sensors are ultrasonic thickness (UT) gauges. However, UT sensors are limited by the need for coupling agents between pipe surfaces and sensors. The magnetic eddy current (MEC) method, on the other hand, does not require couplant and can be used over insulations. With the development of powerful rare earth magnets, MEC sensors with low power consumption are possible, and there is the prospect of using them as permanently installed sensors. A novel wireless magnetic eddy current sensor has been designed and optimized using finite element simulation. Sensitivity studies of the sensors reveal that the excitation frequency is a critical parameter for the detection of corrosion defects. An in-depth explanation of the relationship between the sensitivity of the sensor and the excitation frequency is presented in this paper. The results of an accelerated corrosion test, conducted to simulate the service environment of the sensor, are also discussed. It was observed that the sensor signals are very sensitive to corrosion defects and show no subtle differences due to temperature and humidity changes.
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Vrba, Jan, Jakub Karch i David Vrba. "Phantoms for Development of Microwave Sensors for Noninvasive Blood Glucose Monitoring". International Journal of Antennas and Propagation 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/570870.
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A suitability of two different liquid phantoms of blood-glucose solutions as phantoms for development of microwave sensors for noninvasive blood glucose monitoring is compared. The two phantoms are physiological saline-glucose and pig blood-glucose solutions. For this purpose a simple microwave sensor is developed for in vitro monitoring of blood glucose levels. The sensor consists of a microstrip antenna and of a small rectangular container on the top of the antenna. The container is filled with one of the liquid phantoms. Both phantoms with different glucose concentrations ranging from 0 to 500 mg/dL are considered. Dependence of sensor’s resonant frequency on glucose concentration of LUTs is both estimated by aid of numerical simulations and measured. The results are discussed and compared with some results reported in the literature.
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Khan, Muhammad Imran, Abdul Mannan Khan, Muhammad Khurram Saleem i Ahmed Nouman. "Development of Efficient Tactile Sensing System for Humanoid Robotics". Applied Mechanics and Materials 232 (listopad 2012): 372–76. http://dx.doi.org/10.4028/www.scientific.net/amm.232.372.
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This paper is related to the development of ASIC for tactile sensing system in humanoid robots. First of all, it is necessary to choose the best sensor for tactile sensing in humanoid robots. A large number of sensors like capacitive, resistive, piezoresistive, tunnel effective, optical, ultrasonic, magnetism based, piezoelectric sensors are available in market for tactile sensing. Not all the sensors are suitable for tactile sensing at all locations of humanoid robotics. We need to use different sensors for different locations in humanoid robotics like fingerprints and belly. Fingerprints of robot are most important part where we need a huge number of sensors on a limited place. As we need a large amount of data for exact modeling of properties contact surface so we require data from a large number of tactile sensors and hence we need to develop an array of tactile sensors.
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Collier-Oxandale, Ashley, Vasileios Papapostolou, Brandon Feenstra, Berj Der Boghossian i Andrea Polidori. "Towards the Development of a Sensor Educational Toolkit to Support Community and Citizen Science". Sensors 22, nr 7 (26.03.2022): 2543. http://dx.doi.org/10.3390/s22072543.
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As air quality sensors increasingly become commercially available, a deeper consideration of their usability and usefulness is needed to ensure effective application by the public. Much of the research related to sensors has focused on data quality and potential applications. While this information is important, a greater understanding of users’ experience with sensors would provide complementary information. Under a U.S. EPA-funded Science to Achieve Results grant awarded to the South Coast Air Quality Management District in California, titled “Engage, Educate, and Empower California Communities on the Use and Applications of Low-Cost Air Monitoring Sensors”, approximately 400 air quality sensors were deployed with 14 California communities. These communities received sensors and training, and they participated in workshops. Widely varying levels of sensor installation and engagement were observed across the 14 communities. However, despite differences between communities (in terms of participation, demographics, and socioeconomic factors), many participants offered similar feedback on the barriers to sensor use and strategies leading to successful sensor use. Here, we assess sensor use and participant feedback, as well as discuss the development of an educational toolkit titled “Community in Action: A Comprehensive Toolkit on Air Quality Sensors”. This toolkit can be leveraged by future community and citizen science projects to develop networks designed to collect air quality information that can help reduce exposure to and the emissions of pollutants, leading to improved environmental and public health.
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Sharad, Wagh. "The development of the earth remote sensing from satellite". MECHANICS OF GYROSCOPIC SYSTEMS, nr 40 (26.12.2021): 46–54. http://dx.doi.org/10.20535/0203-3771402020248768.
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Remote sensing activities from satellite are important aspect togain information about earth surface, thus has important significance on military, economic and geology fields. After 1962, the term remote sensing became popular and typically refers to non-intrusive observation of the Earth using electromagnetic waves from a platform some distance away from the object of study. Remote sensing implies a measurement made by some indirect or “remote” means rather than by a contact sensor. Remote sensing platform of satellite serves the sensing by using sensors. There are two types of sensors active and passive sensors. This article reviews about the sensors which are used for remote sensing of earth from satellite. This article analyses the sensors for sensing purpose and for attitude control of the satellite.
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Harms, Julius, i Thorsten A. Kern. "Theory and Modeling of Eddy Current Type Inductive Conductivity Sensors". Engineering Proceedings 6, nr 1 (17.05.2021): 37. http://dx.doi.org/10.3390/i3s2021dresden-10103.
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While transformer-type conductivity sensors are the usual type of inductive sensors, this paper describes the theory behind less used eddy current sensors. This type of sensor measures the conductivity of a liquid by inducing eddy currents and observing the effect on the sensor coil, which allows a simpler sensor design and promises a cost advantage in implementation. A novel model description is derived from the Maxwell equations and implemented by an equivalent RLC circuit. The designed model is validated by comparisons with experimental observations and FEM simulations. The result leads to a better understanding of the physical effects of the sensor and the influencing parameters for future sensor developments. The aim is to provide starting points for further sensor development of low-cost inductive conductivity sensors.
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Petrović, Davor, i Željko Barač. "Different Sensor Systems for the Application of Variable Rate Technology in Permanent Crops". Tehnički glasnik 12, nr 3 (25.09.2018): 188–95. http://dx.doi.org/10.31803/tg-20180213125928.
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The paper presents a review of different sensory systems for trees’ characterization and detection in permanent crops and the detection of plant health status in crop conditions for the purpose of applying the variable application rate. The use of new technologies enables the use of variable inputs in production with the aim of increasing the economic profit and reducing the negative impact on the environment. World trends increasingly emphasize the use of various sensor systems to achieve precision agriculture and apply the following: ultrasonic sensors for the detection of permanent crops; LIDAR (optical) sensors for treetop detection and characterization; infrared sensors with similar characteristics of optical sensors, but with very low cost prices and N - sensors for variable nitric fertilization. The daily development of sensor systems applied in agricultural production improves the performance and quality of the machines they are installed on. With a more intensive use of sensors in agricultural mechanization, their price becomes more acceptable for widespread use by achieving high quality work with respect to the ecological principles of sustainable production.
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Abdurakhmanov, E., Kh G. Sidikova, Z. B. Muradova i Z. E. Abdurakhmanova. "Development of a selective carbon monoxide sensor". IOP Conference Series: Earth and Environmental Science 839, nr 4 (1.09.2021): 042078. http://dx.doi.org/10.1088/1755-1315/839/4/042078.
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Abstract In this work, the regularities of the oxidation of combustible substances (H2, CO, CH4, and gasoline vapors) in the presence of metal oxides are revealed and catalysts for the sensitive elements of selective carbon monoxide sensors are selected on their basis. The possibility of creating a highly selective sensor using measuring and compensating heat-sensitive elements containing catalysts of different activity to the components of gas mixtures has been experimentally confirmed. The main characteristics of the developed selective carbon monoxide sensors are evaluated. The use of such sensors reduces the error of analysis, increases the instrument readings’ stability and service life, and improves reproducibility and selectivity in the continuous automatic determination of gas components in the measurement area.
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Srivastava, Neeraj. "Advancements in Sensor Technologies for Perception and Feedback in Mechatronic Systems". Mathematical Statistician and Engineering Applications 70, nr 1 (31.01.2021): 471–78. http://dx.doi.org/10.17762/msea.v70i1.2499.
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Mechatronic systems play a pivotal role in various industries, ranging from manufacturing and robotics to automotive and healthcare. The effectiveness of these systems heavily relies on accurate perception and timely feedback, which are enabled by advancements in sensor technologies. This abstract provides a comprehensive overview of recent developments in sensor technologies for perception and feedback in mechatronic systems. The advancements in sensor technologies have revolutionized the field of mechatronic systems by enabling enhanced perception and feedback capabilities. Vision sensors, tactile sensors, proximity sensors, force and torque sensors, motion sensors, and biosensors have all contributed to improved situational awareness, control precision, and human-machine interaction. The integration of sensor fusion techniques further enhances the robustness and adaptability of mechatronic systems. However, ongoing research and development efforts are needed to address the challenges and leverage emerging technologies for future advancements in sensor technologies for perception and feedback in mechatronic systems.
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Nonaka, Tomohiro, Yutaka Sakata, Yasuo Marumo, Yoshinori Okinishi, Taiki Horinouchi, Ippei Ogawa i Shinobu Watanabe. "Development of Intelligent Forming Dies with In-Process Defect Detection System for Sheet Products". Applied Mechanics and Materials 34-35 (październik 2010): 1034–38. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1034.
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In press working, to prevent defects in sheet products and establish the traceability of the causes of defects, we have developed defect detection dies incorporating several types of sensor, including load sensors, fiber laser sensors, ultrasonic sensors and optional sensors. Typical defects such as the rising of pierced scraps, burrs, spring-back/spring-go and wrinkling can be detected using the defect detection dies, i.e., the intelligent forming dies. The real-time defect inspection of all products will be possible. This system can be used to identify defective products on the basis of sensor information compiled in a database. The causes of defects can be clarified from the situation in real time.
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Luo, ChengPu. "Application and Development of Sensors in Mechatronic Systems". Electronics Science Technology and Application 1, nr 1 (26.07.2014): 1. http://dx.doi.org/10.18686/esta.v1i1.1.
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This paper describes the role of the sensor and its position in mechatronic systems, but also about the common in mechatronics sensor types, characteristics, structure and use, etc., also introduced in the selection of indicators in mechatronics and sensor sensors in the future development direction and future prospects. Sensor information training as a pulse is more widely popular and development to all areas of our businesses, which is to make our transition from labor-intensive to technology-based, must use its information technology, namely sensor technology, the sensor in industrial automation, defense industry agriculture, energy, transportation, household appliances and other applications has its developing markets. Potential in our country especially in sensor technology maximum. The main applications for chemistry, environmental protection, bio-engineering and medical health and so on.
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Luo, ChengPu. "Application and Development of Sensors in Mechatronic Systems". Electronics Science Technology and Application 1, nr 1 (26.07.2014): 1. http://dx.doi.org/10.18686/esta.v1i1.11.
Pełny tekst źródłaStreszczenie:
This paper describes the role of the sensor and its position in mechatronic systems, but also about the common in mechatronics sensor types, characteristics, structure and use, etc., also introduced in the selection of indicators in mechatronics and sensor sensors in the future development direction and future prospects. Sensor information training as a pulse is more widely popular and development to all areas of our businesses, which is to make our transition from labor-intensive to technology-based, must use its information technology, namely sensor technology, the sensor in industrial automation, defense industry agriculture, energy, transportation, household appliances and other applications has its developing markets. Potential in our country especially in sensor technology maximum. The main applications for chemistry, environmental protection, bio-engineering and medical health and so on.
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Lopatin, V. V. "Experience of calculation development and implementation strain gauge sensor". METHODS AND DEVICES OF QUALITY CONTROL, nr 1(44) (28.06.2020): 46–53. http://dx.doi.org/10.31471/1993-9981-2020-1(44)-46-53.
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In the mining industry, it is often necessary to directly measure forces with significant restrictions on the sensors, so the use of the range of existing sensors is not possible. In addition, the force and load sensor, which is designed for operation in severe mountain conditions, must be: with an extended range of operating temperatures, degree of protection IP67, moisture resistant in an aggressive environment and structurally designed so as not to violate safety requirements in mine workings. Studies have identified the functional limitations of the force sensor for mining - maximum deformation, overall dimensions and maximum stresses. The decisive factors in choosing a sensor design were precise fixation, reliability, adaptability to mining technological processes with safety and compliance with operating conditions, and reasonable cost. According to the requirements of industry standards of Ukraine, the geometric dimensions of the sensor were chosen in order to find the optimal solution. Based on this information, using a multi-parameter approach, many Pareto valid solutions are obtained. Based on many Paretooptimal solutions, a sensor variant was chosen for which, after applying the above approach, it was possible to reduce non-linearity and reduce the area between the forward and backward curves, as well as to get close to the found strain value in the sticker area. On the basis of an experimental batch of manufactured sensors, their refinement was performed in real mining. The developed sensor type 4201 DST-10 meets the safety requirements of the safety control system in mining and provides higher metrological accuracy than similar sensors developed by other authors. In 4201 DST-10, multicriteria optimization methods were used in designing the elastic elements of the force sensor for a load of 10 tons. The possibility of its use in similar harsh operating conditions at other facilities is allowed.
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Zheng, Qianqian, Liangliang Chen, Luyao Lu i Xuesong Ye. "A review of olfactory cell-based sensors: coupling microelectronics to olfactory cells". Sensor Review 36, nr 4 (19.09.2016): 446–55. http://dx.doi.org/10.1108/sr-03-2016-0062.
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Purpose Olfaction plays a very important role in daily life. The olfactory system has the ability to recognize, discriminate and identify thousands of odorant compounds with extremely high sensitivity and specificity. The research on olfactory system has very important values in exploring the mechanisms of information processing in the other sensory nervous systems and brain. Recently, with the development of molecular biological and microelectronics technology research, the study of olfactory cell-based sensors has made great progress. The purpose of this paper is to provide details of recent developments in olfactory cell-based sensors. Design/methodology/approach Following an introduction, this paper first discusses some olfactory cell-based biosensors, which focus on the light-addressable potentiometric sensors and the microelectrode arrays. Second, surface modification, microfabrication and microfluidic technology which can improve the efficiency of cell immobilization will be summarized. The research trends of olfactory cell-based sensor in future will be proposed. Findings This paper shows that the biosensors’ performance is expected to be greatly improved due to the fast development of nanotechnology, optical technology and microelectronics. More and more emerging intelligent olfactory sensors will have a promising prospect in many application fields, including food quality and safety assessment, environmental monitor and human diseases detection. Originality/value This paper provides a detailed and timely review of the rapidly growing research in the olfactory cell-based sensors.
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Sun, Ning, Beibei Fan, Yahui Ding, Yuanjinsheng Liu, Yuyun Bi, Patience Afi Seglah i Chunyu Gao. "Analysis of the Development Status and Prospect of China’s Agricultural Sensor Market under Smart Agriculture". Sensors 23, nr 6 (21.03.2023): 3307. http://dx.doi.org/10.3390/s23063307.
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Agricultural sensors are essential technologies for smart agriculture, which can transform non-electrical physical quantities such as environmental factors. The ecological elements inside and outside of plants and animals are converted into electrical signals for control system recognition, providing a basis for decision-making in smart agriculture. With the rapid development of smart agriculture in China, agricultural sensors have ushered in opportunities and challenges. Based on a literature review and data statistics, this paper analyzes the market prospects and market scale of agricultural sensors in China from four perspectives: field farming, facility farming, livestock and poultry farming and aquaculture. The study further predicts the demand for agricultural sensors in 2025 and 2035. The results reveal that China’s sensor market has a good development prospect. However, the paper garnered the key challenges of China’s agricultural sensor industry, including a weak technical foundation, poor enterprise research capacity, high importation of sensors and a lack of financial support. Given this, the agricultural sensor market should be comprehensively distributed in terms of policy, funding, expertise and innovative technology. In addition, this paper highlighted integrating the future development direction of China’s agricultural sensor technology with new technologies and China’s agricultural development needs.
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ŁUKASIEWICZ, Henryk. "DEVELOPMENT TRENDS AND OPPORTUNITIES TO USE SENSORS AND SENSOR NETWORKS FOR MILITARY PURPOSES". Scientific Journal of the Military University of Land Forces 160, nr 2 (1.04.2011): 20–37. http://dx.doi.org/10.5604/01.3001.0002.2947.
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The use of sensors is the subject of research and heated discussions not only in our country. Through the creation of network centric warfare - NCW, the intensity of research about the use of sensors for military applications are on the increase. The use of sensors and sensor networks for the military forces must meet several requirements, which are not only related to their costs. These requirements are primarily associated with the reconnaissance possibilities of sensors, resistance to electromagnetic interference or with maintaining security of data transmission. This publication is the first from series of publications about sensors and sensors networks for military applications. Its purpose is to familiarize the reader with issues related to the construction of sensors as well as with the physical quantities measured by them.
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Abdalla, Aya, i Bhavik Anil Patel. "3D Printed Electrochemical Sensors". Annual Review of Analytical Chemistry 14, nr 1 (5.06.2021): 47–63. http://dx.doi.org/10.1146/annurev-anchem-091120-093659.
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Three-dimensional (3D) printing has recently emerged as a novel approach in the development of electrochemical sensors. This approach to fabrication has provided a tremendous opportunity to make complex geometries of electrodes at high precision. The most widely used approach for fabrication is fused deposition modeling; however, other approaches facilitate making smaller geometries or expanding the range of materials that can be printed. The generation of complete analytical devices, such as electrochemical flow cells, provides an example of the array of analytical tools that can be developed. This review highlights the fabrication, design, preparation, and applications of 3D printed electrochemical sensors. Such developments have begun to highlight the vast potential that 3D printed electrochemical sensors can have compared to other strategies in sensor development.
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Zareei, Mahdi, Cesar Vargas-Rosales, Mohammad Hossein Anisi, Leila Musavian, Rafaela Villalpando-Hernandez, Shidrokh Goudarzi i Ehab Mahmoud Mohamed. "Enhancing the Performance of Energy Harvesting Sensor Networks for Environmental Monitoring Applications". Energies 12, nr 14 (20.07.2019): 2794. http://dx.doi.org/10.3390/en12142794.
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Fast development in hardware miniaturization and massive production of sensors make them cost efficient and vastly available to be used in various applications in our daily life more specially in environment monitoring applications. However, energy consumption is still one of the barriers slowing down the development of several applications. Slow development in battery technology, makes energy harvesting (EH) as a prime candidate to eliminate the sensor’s energy barrier. EH sensors can be the solution to enabling future applications that would be extremely costly using conventional battery-powered sensors. In this paper, we analyze the performance improvement and evaluation of EH sensors in various situations. A network model is developed to allow us to examine different scenarios. We borrow a clustering concept, as a proven method to improve energy efficiency in conventional sensor network and brought it to EH sensor networks to study its effect on the performance of the network in different scenarios. Moreover, a dynamic and distributed transmission power management for sensors is proposed and evaluated in both networks, with and without clustering, to study the effect of power balancing on the network end-to-end performance. The simulation results indicate that, by using clustering and transmission power adjustment, the power consumption can be distributed in the network more efficiently, which result in improving the network performance in terms of a packet delivery ratio by 20%, 10% higher network lifetime by having more alive nodes and also achieving lower delay by reducing the hop-count.
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Hausmann, M., L. Häfner i E. Kirchner. "A Procedure Model for the Systematic Sensor Selection and Integration into Technical Systems". Proceedings of the Design Society 2 (maj 2022): 445–54. http://dx.doi.org/10.1017/pds.2022.46.
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AbstractNew sensor solutions are under development in the context of digitalization in order to integrate sensory functions into systems. When integrating sensors, the three domains of mechanical, electrical and information engineering must be considered. This results in complex development processes that require suitable procedure models. However, specific procedure models for sensor selection and integration are missing. This contribution proposes a procedure model for sensor selection and integration on the basis of the Munich Procedure Model (MPM) and gives an outlook on open research questions.
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Li, Jinze, Xin Liu, Jiawei Xi, Li Deng, Yanxin Yang, Xiang Li i Hao Sun. "Recent Development of Polymer Nanofibers in the Field of Optical Sensing". Polymers 15, nr 17 (31.08.2023): 3616. http://dx.doi.org/10.3390/polym15173616.
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In recent years, owing to the continuous development of polymer nanofiber manufacturing technology, various nanofibers with different structural characteristics have emerged, allowing their application in the field of sensing to continually expand. Integrating polymer nanofibers with optical sensors takes advantage of the high sensitivity, fast response, and strong immunity to electromagnetic interference of optical sensors, enabling widespread use in biomedical science, environmental monitoring, food safety, and other fields. This paper summarizes the research progress of polymer nanofibers in optical sensors, classifies and analyzes polymer nanofiber optical sensors according to different functions (fluorescence, Raman, polarization, surface plasmon resonance, and photoelectrochemistry), and introduces the principles, structures, and properties of each type of sensor and application examples in different fields. This paper also looks forward to the future development directions and challenges of polymer nanofiber optical sensors, and provides a reference for in-depth research of sensors and industrial applications of polymer nanofibers.
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Liu, Jihong, Siyu Bao i Xinzhe Wang. "Applications of Graphene-Based Materials in Sensors: A Review". Micromachines 13, nr 2 (26.01.2022): 184. http://dx.doi.org/10.3390/mi13020184.
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With the research and the development of graphene-based materials, new sensors based on graphene compound materials are of great significance to scientific research and the consumer market. However, in the past ten years, due to the requirements of sensor accuracy, reliability, and durability, the development of new graphene sensors still faces many challenges in the future. Due to the special structure of graphene, the obtained characteristics can meet the requirements of high-performance sensors. Therefore, graphene materials have been applied in many innovative sensor materials in recent years. This paper introduces the important role and specific examples of sensors based on graphene and its base materials in biomedicine, photoelectrochemistry, flexible pressure, and other fields in recent years, and it puts forward the difficulties encountered in the application of graphene materials in sensors. Finally, the development direction of graphene sensors has been prospected. For the past two years of the COVID-19 epidemic, the detection of the virus sensor has been investigated. These new graphene sensors can complete signal detection based on accuracy and reliability, which provides a reference for researchers to select and manufacture sensor materials.
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Li, Yongzhen, Pei Cao, Peng Zhang, Hua Yang, Xiaofeng Zhu i Ruihua Guo. "Design and Development of a Hair-like Sensor with Bridge-Type Flexible Amplification Mechanisms". Sensors 23, nr 17 (23.08.2023): 7354. http://dx.doi.org/10.3390/s23177354.
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Compared with lever-type amplification mechanisms, bridge-type flexible amplification mechanisms have advantages in terms of amplification ratio and structural compactness. Therefore, they can effectively replace the lever-type amplification mechanism in the existing hair-like sensors and realize the development of miniature hair-like sensors with high sensitivity. With that in mind, a highly sensitive hair-like sensor based on a bridge-type amplification mechanism with distributed flexibility is presented to measure the airflow rate. First, the structural composition and operating principle of the hair-like sensor are described. Then, detailed design and analysis of the hair-like sensor are carried out, focusing on the design of the hair post structure, amplification mechanism, and resonator. Furthermore, the designed hair-like sensor is processed and prepared, and some experimental studies are conducted. The experimental results demonstrate that the developed hair-like sensor can measure the airflow rate with high sensitivity up to 8.56 Hz/(m/s)2. This provides a new concept for the structural design of hair-like sensors and expands the application of bridge-type flexible amplification mechanisms in the field of micro/nano sensors.
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Mahore, Aman, Mohit Kumar, H. L. Kushwaha, Mukesh Kumar Choudhary, Rohit Nalawade i Abhishek Patel. "Development and Performance Assessment of Real-time Rotational Speed Measurement System for Agricultural Application". International Journal of Plant & Soil Science 35, nr 4 (6.03.2023): 51–57. http://dx.doi.org/10.9734/ijpss/2023/v35i42798.
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Rotational speed is one of the most important parameters in the performance of any system. It becomes more vital when the rotational speed measurement is required on real-time basis. Measurement of rotational speed has a crucial role in automation of agricultural machineries for various purposes. The existing real-time speed measurement systems are susceptible to the varying working environment. Therefore, it was necessary to study the performance of available sensor. In this study four different sensors (inductive proximity, Infrared (IR), Hall effect and optical proximity sensors) were tested in three different working environments (indoor, outdoor and outdoor dusty condition) for two different spacings (2 and 5 mm) between sensors and target. A laboratory setup was developed to test the performance of the sensors in terms of percentage deviation in rotational speeds measurement compared to actual values. The values were recorded in Secure Digital (SD) card and analysed using full factorial design. The means of the different levels were compared using Tukey’s (b) method. There was significant difference in sensor response for different conditions. The percentage of deviation in speed for Hall effect, inductive proximity, IR and optical proximity sensors varied from 0.55 to 1.03, 1.20 to 32.29, 21.37 to 100.00 and 35.18 to 99.98%, respectively. The study concluded that the Hall effect sensor was more suitable for rotational speed measurement than the other sensors without being affected by working environment.
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Ni, Yi Qing, Yong Xia, Wei Yang Liao i Peng Zhang. "Development of a Structural Health Monitoring System for Guangzhou New TV Tower". Advances in Science and Technology 56 (wrzesień 2008): 414–19. http://dx.doi.org/10.4028/www.scientific.net/ast.56.414.
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A long-term structural health monitoring (SHM) system consisting of more than 600 sensors has been designed and is being implemented by The Hong Kong Polytechnic University to the Guangzhou New TV Tower (GNTVT) of 610 m high. This monitoring system is one of few SHM practices that integrate in-construction monitoring and in-service monitoring. It is also designed to perform a special function of verifying the effectiveness of vibration control devices to be installed on the tower. The sensory system for in-construction monitoring includes a weather station, a total station, anemometers, zenithal telescopes, level sensors, theodolites, global positioning systems, vibrating wire gauges, thermometers, digital video cameras, and accelerometers (for ambient vibration monitoring at several construction stages), and the sensory system for in-service monitoring includes a weather station, anemometers, wind pressure sensors, vibrating wire gauges, thermometers, global positioning systems, digital video cameras, accelerometers, a seismograph, corrosion sensors, tiltmeters, and fiber optic sensors (for dynamic strain and temperature monitoring). The strain and temperature at the inner structure during construction are continuously monitored by a wireless data acquisition system. This paper outlines the design and implementation of this SHM system.
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Song, Chenyu. "Flexible Capacitive Pressure Sensors and Approaches to Enhance Sensitivity". Highlights in Science, Engineering and Technology 44 (13.04.2023): 41–48. http://dx.doi.org/10.54097/hset.v44i.7191.
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Many research groups have become interested in the flexible capacitive pressure sensor in recent years. It has many applications, such as electronic skin and fingerprint collection devices. One of the challenges is optimizing the sensor's design, which can be achieved by improving its sensitivity. The flexible capacitive pressure sensor outperforms other pressure sensors in terms of efficiency, response time, and cost. In the future, more applications will use the flexible capacitive pressure sensor as the component. Thus, improving its sensitivity becomes significant. The topic of this review is to briefly introduce the flexible capacitive pressure sensor's mechanism, how to achieve high sensitivity and any potential applications that already exist in the market. It will also go over some experiments to improve the sensor's sensitivity and their benefits. In the end, the future expectations of the capacitive pressure sensor will also be discussed. The topic of this review will be significant to the development of electronic devices.