Tesis sobre el tema "Contact sensor"
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Narayanaswamy, Anand Subramanian. "A Non-Contact Sensor Interface for High-Temperature, MEMS Capacitive Sensors". Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1275675071.
Texto completoDemas, Nickolas Peter. "A contact force sensor for medical jet injection". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101813.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (pages 131-135).
Medical jet injection, in which a narrow fluid drug stream is propelled into the skin without a needle, was first conceived in the 1940s [1]. However, a major drawback of most injectors is the lack of controllability of jet parameters. Recent work at the BioInstrumentation Laboratory at MIT has resulted in a tunable, high-performance linear Lorentz-force jet injector which allows for careful control of many injection variables. The sensor presented in this thesis further improves the ability to quantify and control contact forces between the injection nozzle and tissue. This sensor uses a three-spoke flexure system with full-bridge strain gauge assemblies mounted on each flexural arm to measure both normal and lateral forces applied to the nozzle. The design, fabrication, calibration, and validation for the sensor are detailed along with results for preliminary tissue injections into ex vivo porcine tissue. These preliminary tests showed higher percent volume delivery to the tissue with an elevated normal force. Under normal forces of 4 to 8 N, the BioInstrumentation Lab's jet injector achieved percent volume delivery of 89.1 ± 5.1%, whereas with normal forces of 0 to 4 N, the percent volume delivery was 68.9 ± 12.7%.
by Nickolas Peter Demas.
S.M.
Daivasagaya, Daisy. "CMOS contact and phase imaging of biochemical sensor microarray". Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=117067.
Texto completoDans cette thèse, nous présentons deux systèmes pour détecter l'oxygène gazeux (O2). Tout d'abord, nous décrivons un microsystème compact à senseur luminescent qui est basée sur l'intégration directe d'éléments de senseur avec un filtre optique polymère qui est placé sur un imageur circuits intégrés (CI) à faible énergie de type Complementary metal oxide semi-conductor (CMOS). Le second système est un système portatif qui permet de détecter la différence de phase fluorométrique. Ce système est basé sur un circuit intégré à puce unique qui permet de générer des signaux sinusoïdal en utilisant la synthèse directe de signaux digitaux et l'extraction de l'angle de phase du signal luminescent, provenant des films du senseur, en utilisant des transformées de Fourier discrète sur ce signal. Pour la détection du dioxygène, les senseurs mesure l'intensité d'émission des luminophores tris (4,7-diphényl-1, 10 - phénanthroline) ruthénium (II) ([Ru(dpp)3]2+) à l'état excité encapsulés dans des sol-gel provenant de micro film xérogel. Le microsystème compact à senseur luminescent comprend un filtre optique polymère à base de polydiméthylsiloxane (PDMS), qui est mélangée avec le colorant Soudan-II. La surface du filtre PDMS est moulée pour ainsi incorporer les réseaux de microstructures pyramidales qui servent à concentrer les signaux des senseurs optiques sur les photodétecteurs. Les réseaux de senseur à base de xérogel sont imprimés par contact sur le dessus des microstructures PDMS pyramidales qui agissant comme des lentilles. L'imageur CMOS utilise une matrice de 32x32 (1024 éléments) servant de pixels actifs et chaque un de ces pixels comporte un phototransistor à gain élevé pour convertir les signaux détectés optiques en courants électriques. La corrélation de circuit d'échantillonnage double, l'adresse de pixel, et les circuits de commande numérique d'intégration de signaux sont également résolue par la puce. Les données sont lues par l'imageur en tant que signaux codé en série. Les capteurs CMOS fournissent une plateforme utile pour le développement des systèmes miniaturisés pour l'analyse fiable et précis des composantes chimiques gazeuse et aqueuse par des moyens optiques.
Parmar, Biren Jagadish. "Development Of Point-Contact Surface Acoustic Wave Based Sensor System". Thesis, Indian Institute of Science, 2006. http://hdl.handle.net/2005/279.
Texto completoEllis, Lisa Marie. "Oil monitoring with an optically stimulated contact potential difference sensor". Thesis, Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-07072004-125914/unrestricted/Ellis%5FLisa%5FM%5F200407%5Fmast.pdf.
Texto completoJiri Janata, Committee Member ; Shreyes Melkote, Committee Member ; Steven Danyluk, Committee Chair. Includes bibliographical references.
Imran, Muneeb. "Contact-Less High Speed Measurement over Ground with 61 GHz Radar Sensor". Master's thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-212611.
Texto completoCASASSA, FEDERICO. "Testing procedures and acquisition systems for contact sensor¿based vocal monitoring devices". Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2742525.
Texto completoMcNeal, Cedric J. "Barrel wear reduction in rail guns : the effects of known and controlled rail spacing on low voltage electrical contact and the hard chrome plating of copper-tungsten rail and pure copper rails /". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FMcNeal.pdf.
Texto completoThesis advisor(s): William B. Maier II, Richard Harkins. Includes bibliographical references (p. 45-46). Also available online.
Park, Jaihun. "Investigation of a quasi-static wheel-ground contact sensor for off-road vehicles /". Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3008415.
Texto completoTsiareshka, Siarhei G. "Vibrating CPD Chemical Degradation Oil Sensor". Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11636.
Texto completoKalman, Babković. "Višenamenski integrisani senzor sile i pomeraja". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=100643&source=NDLTD&language=en.
Texto completoIn this thesis, measurement of force and displacement has been analyzedusing sensors which can be embedded into existing elements of robotic andindustrial systems. Force is measured by measuring the deformation ofelastic elements. Two mehtods have been applied to displacementmeasurement: an optical component and an inductive structure fabricated byprinting on flexible substrate and its subsequent cutting. Measurement offorce has been demonstrated on a pendulum attached to its base, where thecontact between the base and its support is measured. Displacementmeasurement has been shown by measuring vibration. The vibrationmeasurement system is supplemented with an automatic operating pointadjustment system which also adds an automatic calibration feature.
Amara, Pavan Kumar. "Towards a Unilateral Sensor Architecture for Detecting Person-to-Person Contacts". Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404573/.
Texto completoMess, Francis M. "A novel sensor to monitor surface charge interactions the optically stimulated contact potential difference probe /". Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-01282006-182022/.
Texto completoSteven Danyluk, Committee Chair ; Thomas Kurfess, Committee Member ; Peter Hesketh, Committee Member ; Jiri Janata, Committee Member ; Ajeet Rohatgi, Committee Member.
Mess, Francis McCarthy. "A Novel Sensor to Monitor Surface Charge Interactions: The Optically Stimulated Contact Potential Difference Probe". Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10460.
Texto completoAmara, Pavan Kumar. "Towards a Unilateral Sensor Architecture for Detecting Person-to-Person Contacts". Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc1703441/.
Texto completoYasri, Maria. "Capteur de corrosion passif et sans contact". Thesis, Brest, 2016. http://www.theses.fr/2016BRES0006/document.
Texto completoThis thesis focused on the design of a passive wireless corrosion sensor. Existing wireless solutions concern either classic architecture sensors or passive solutions. In the first case, the corrosion sensor is active and can be interrogated at long range. In the second case, the existing passive solutions only work with reading distances of a few centimeters because of the low frequencies. The objective of this study was to respond to this need. That’s why; we were inspired by the RFID( Radio Frequency Identification) passive chipless technology for the development of a sensor based on a microwave function. The first structure was a microstrip line, of which the strip is composed of a thin layer of an element sensitive to corrosion. In this case, the corrosion of the line is proven by an amplitude variation due to losses principally explained by the skin effect or the creation of defects. A second microwave structure was developed based on a stub (open circuit) which allowed us to follow the process of corrosion via a frequency variation. Much like the microstrip line, this structure allowed us to distinguish between uniform corrosion and localised corrosion. Due to the highlighting of these features, different corrosion control strategies can be imagined and a demonstrator was executed. The key point of the proposed demonstrator is an increase in the reading distance in the chipless RFID technology; this was made possible by taking into consideration the isolation TX / Rx of the reader. In this context, three types of antennas were studied. In order to increase the reading distance, other isolation techniques were proposed: the use of a phase shifter but also a temporal isolation using a SAW delay line. Thanks to these two methods, a reading distance of two meters was obtained. Following the RF characterizations of metals exposed to the discussed corrosion, we also developed a near field RF probe, which allows corrosion diagnostic of metal surfaces
Komzák, Daniel. "Detektor vad s využitím CIS senzoru". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413271.
Texto completoSvärd, Daniel. "Design and evaluation of a capacitively coupled sensor readout circuit, toward contact-less ECG and EEG". Thesis, Linköping University, Department of Electrical Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-54520.
Texto completoIn modern medicine, the measurement of electrophysiological signals play a key role in health monitoring and diagnostics. Electrical activity originating from our nerve and muscle cells conveys real-time information about our current health state. The two most common and actively used techniques for measuring such signals are electrocardiography (ECG) and electroencephalography (EEG).
These signals are very weak, reaching from a few millivolts down to tens of microvolts in amplitude, and have the majority of the power located at very low frequencies, from below 1 Hz up to 40 Hz. These characteristics sets very tough requirements on the electrical circuit designs used to measure them. Usually, measurement is performed by attaching electrodes with direct contact to the skin using an adhesive, conductive gel to fixate them. This method requires a clinical environment and is time consuming, tedious and may cause the patient discomfort.
This thesis investigates another method for such measurements; by using a non-contact, capacitively coupled sensor, many of these shortcomings can be overcome. While this method relieves some problems, it also introduces several design difficulties such as: circuit noise, extremely high input impedance and interference. A capacitively coupled sensor was created using the bottom layer of a printed circuit board (PCB) as a capacitor plate and placing it against the signal source, that acts as the opposite capacitor plate. The PCB solder mask layer and any air in between the two acts as the insulator to create a full capacitor. The signal picked up by this sensor was then amplified by 60 dB with a high input impedance amplifier circuit and further conditioned through filtering.
Two measurements were made of the same circuit, but with different input impedances; one with 10 MΩ and one with 10 GΩ input impedance. Additional filtering was designed to combat interference from the main power lines at 50 Hz and 150 Hz that was discovered during initial measurements. The circuits were characterized with their transfer functions, and the ability to amplify a very low-level, low frequency input signal. The results of these measurements show that high input impedance is of critical importance for the functionality of the sensor and that an input impedance of 10 GΩ is sufficient to produce a signal-to-noise ratio (SNR) of 9.7 dB after digital filtering with an input signal of 25 μV at 10 Hz.
Rakels, Jan Henricus. "An in-process, non-contact surface finish sensor for high quality components generated using diamond turning". Thesis, University of Warwick, 1987. http://wrap.warwick.ac.uk/4156/.
Texto completoTran, Sung. "Development of a Sensor Readout Integrated Circuit Towards a Contact Lens for Wireless Intraocular Pressure Monitoring". DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1750.
Texto completoFischer, Calderón Juan Sebastián. "Theoretical and experimental investigations of multiple contact points between a biologically inspired tactile sensor and various objects". Master's thesis, Pontificia Universidad Católica del Perú, 2018. http://hdl.handle.net/20.500.12404/20354.
Texto completoKotarsky, Ulf. "Hochauflösender mikromechanischer Sensor zur Erfassung von Oberflächenprofilen". Doctoral thesis, Universitätsbibliothek Chemnitz, 2005. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200500132.
Texto completoGregor, Lukáš. "Snímač s vnesenou impedancí". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217704.
Texto completoBergström, Anna. "SPR Sensor Surfaces based on Self-Assembled Monolayers". Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16664.
Texto completoThe study and understanding of molecular interactions is fundamentally important in today's field of life sciences and there is a demand for well designed surfaces for biosensor applications. The biosensor has to be able to detect specific molecular interactions, while non-specific binding of other substances to the sensor surface should be kept to a minimum. The objective of this master´s thesis was to design sensor surfaces based on self-assembled monolayers (SAMs) and evaluate their structural characteristics as well as their performance in Biacore systems. By mixing different oligo (ethylene glycol) terminated thiol compounds in the SAMs, the density of functional groups for bimolecular attachment could be controlled. Structural characteristics of the SAMs were studied using Ellipsometry, Contact Angle Goniometry, IRAS and XPS. Surfaces showing promising results were examined further with Surface Plasmon Resonance in Biacore instruments.
Mixed SAM surfaces with a tailored degree of functional COOH groups could be prepared. The surfaces showed promising characteristics in terms of stability, immobilization capacity of biomolecules, non-specific binding and kinetic assay performance, while further work needs to be dedicated to the improvement of their storage stability. In conclusion, the SAM based sensor surfaces studied in this thesis are interesting candidates for Biacore applications.
Fochtmann, Jörg [Verfasser]. "Non-destructive Quality Control of the Contact Normal Force in Electrical Connectors: A Sensor and System Approach / Jörg Fochtmann". Aachen : Shaker, 2019. http://d-nb.info/1188552511/34.
Texto completoSANTANA, Henrique Nunes de. "Análise da aplicabilidade de sensores de acoplamento capacitivo no monitoramento de disjuntores de alta tensão". Universidade Federal de Campina Grande, 2017. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/403.
Texto completoMade available in DSpace on 2018-04-17T13:51:49Z (GMT). No. of bitstreams: 1 HENRIQUE NUNES DE SANTANA – DISSERTAÇÃO (PPGEE) 2017.pdf: 2930914 bytes, checksum: a4c0e297d62f2854c085762512fb6f16 (MD5) Previous issue date: 2017-08-18
Capes
Neste trabalho, é avaliada aplicabilidade de sensores de acoplamento capacitivo na detecção dos sinais emitidos por arcos elétricos em contatos de disjuntores. Adicionalmente, é investigada a possibilidade de correlacionar estes sinais com nível de degradação dos contatos de arco. A aplicabilidade dos sensores é avaliada por meio da comparação dos sinais detectados pelos mesmos, com os sinais detectados por uma antena direcional em banda larga, tanto no domínio do tempo quanto no domínio da frequência. Para a análise da correlação entre o nível de degradação dos contatos de arco e os sinais detectados, atributos de estatística descritiva da duração e da energia dos sinais foram avaliados. A análise dos resultados evidenciou que os sensores de acoplamento capacitivo são capazes de detectar os sinais emitidos pelos arcos elétricos. Também foi evidenciado que a sensibilidade de detecção dos sensores depende da posição na qual foram instalados ao longo do polo analisado. No caso dos disjuntores utilizados neste trabalho, a melhor posição para a instalação dos sensores foi a posição mais próxima do terminal inferior do polo. A flexibilidade e o valor da constante dielétrica devem ser avaliados no momento da escolha do material empregado na confecção dos sensores, uma vez que sensores pouco flexíveis podem sofrer danos ao serem instalados no polo do disjuntor e, constantes dielétricas elevadas podem prejudicar os ganhos dos respectivos sensores. A correlação entre os sinais dos arcos elétricos detectados pelos sensores e o nível de degradação dos contatos de arco é possível, quando os atributos estatísticos da média, desvio padrão, curtose e mediana obtidos da energia dos referidos sinais são avaliados.
In this work, is evaluated the applicability of capacitive coupling sensors in the detection of signals emitted by electric arcs in circuit breaker contacts. In addition, the possibility of correlating these signals with the arcing contacts degradation level is investigated. The sensors applicability is investigated by comparing the signals detected by them with the signals detected by a broadband directional antenna in both time and frequency domain. For the analysis of the correlation between the arcing contacts degradation level and the detected signals, descriptive statistical attributes of the duration and energy of the signals were evaluated. The analysis of the results showed that the capacitive coupling sensors are able to detect the signals emitted by the electric arcs. It was also evidenced that the sensor detection sensitivity depends on the position in which they are installed along the analyzed pole. In the case of the circuit breakers used in this work, the best position for the installation of the sensors was the one closest to the lower terminal of the pole. The flexibility and value of the dielectric constant must be evaluated when choosing the material used in the construction of the sensors, since weak sensors can be damaged when installed at the pole of the circuit breaker, and high dielectric constants can affect the gains of the respective sensors. The correlation between the electric arcs signals detected by the sensors and the arcing contacts degradation level is possible, when the statistical attributes of the mean, standard deviation, kurtosis and median obtained from the energy of these signals are evaluated.
Ouyang, Wenbin. "On-Loom Fabric Defect Inspection Using Contact Image Sensors and Activation Layer Embedded Convolutional Neural Network". Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1404537/.
Texto completoAntoniadis, Antonios. "Moisture calibration of an R.F based inline moisture sensor : An inline moisture sensor based on radio wave attenuation, Microtec M3 Scan, was calibrated to maximise correlation between real water content in wood and received signal". Thesis, Luleå tekniska universitet, Träteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-77359.
Texto completoFITTI, Matteo. "Non-contact smart measurement systems for in-line quality control of precision turned parts". Doctoral thesis, Università Politecnica delle Marche, 2020. http://hdl.handle.net/11566/274500.
Texto completoThis thesis is the result of work carried out within the European project H2020 GO0D MAN and intends to be a contribution to realize the Industry 4.0 paradigm. In particular, it concerns the development of in-line smart quality control systems. The work presents the development of two systems: a) an automated measurement system based on a confocal chromatic sensor for checking the dimensions of turned metal components and b) an automated control system based on computer vision for checking the presence of burrs due to the drilling process on the same parts. These metal components, which consist of little hollow cylinders with several lateral holes, are used in hydraulic valves intended for use in the automotive industry. The quality control of these parts requires the verification of stringent dimensional tolerances and functional performances. The overall objective of the project is to realize an in-line 100% quality control in order to prevent the generation and propagation of defects at the exit of the turning processing station. The two systems developed exhibit smart behaviour, aimed at managing measurement uncertainty and reducing the risk of misdiagnosis. The automation level and the optical non-contact approach adopted allows to extend the controls previously made on statistical samples to 100% of the production. After presenting the industrial cases, this thesis discusses the conceptual design for each system, the steps for the realization of the prototypes, their characterization in laboratory condition and finally the demonstration in a real production line.
Dresher, Russell Paul. "Wearable Forehead Pulse Oximetry: Minimization of Motion and Pressure Artifacts". Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050306-104212/.
Texto completoKeywords: sensor attachment, wearable sensor, pulse oximetry, motion artifact, contact pressure, remote physiological monitoring. Includes bibliographical references (p.54-57).
Koporec, Lukáš. "Vliv plazmatické oxidace uhlíkové pracovní elektrody na její elektrochemickou odezvu". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242043.
Texto completoAlmeida, Luís Miguel Martins. "Human-robot interaction for object transfer". Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/22374.
Texto completoRobots come into physical contact with humans under a variety of circumstances to perform useful work. This thesis has the ambitious aim of contriving a solution that leads to a simple case of physical human-robot interaction, an object transfer task. Firstly, this work presents a review of the current research within the field of Human-Robot Interaction, where two approaches are distinguished, but simultaneously required: a pre-contact approximation and an interaction by contact. Further, to achieve the proposed objectives, this dissertation addresses a possible answer to three major problems: (1) The robot control to perform the inherent movements of the transfer assignment, (2) the human-robot pre interaction and (3) the interaction by contact. The capabilities of a 3D sensor and force/tactile sensors are explored in order to prepare the robot to handover an object and to control the robot gripper actions, correspondingly. The complete software development is supported by the Robot Operating System (ROS) framework. Finally, some experimental tests are conducted to validate the proposed solutions and to evaluate the system's performance. A possible transfer task is achieved, even if some refinements, improvements and extensions are required to improve the solution performance and range.
Os robôs entram em contacto físico com os humanos sob uma variedade de circunstâncias para realizar trabalho útil. Esta dissertação tem como objetivo o desenvolvimento de uma solução que permita um caso simples de interação física humano-robô, uma tarefa de transferência de objetos. Inicialmente, este trabalho apresenta uma revisão da pesquisa corrente na área da interação humano-robô, onde duas abordagens são distinguíveis, mas simultaneamente necessárias: uma aproximação pré-contacto e uma interação pós-contacto. Seguindo esta linha de pensamento, para atingir os objetivos propostos, esta dissertação procura dar resposta a três grandes problemas: (1) O controlo do robô para que este desempenhe os movimentos inerentes á tarefa de transferência, (2) a pré-interação humano-robô e (3) a interação por contacto. As capacidades de um sensor 3D e de sensores de força são exploradas com o objetivo de preparar o robô para a transferência e de controlar as ações da garra robótica, correspondentemente. O desenvolvimento de arquitetura software é suportado pela estrutura Robot Operating System (ROS). Finalmente, alguns testes experimentais são realizados para validar as soluções propostas e para avaliar o desempenho do sistema. Uma possível transferência de objetos é alcançada, mesmo que sejam necessários alguns refinamentos, melhorias e extensões para melhorar o desempenho e abrangência da solução.
Novotný, Jan. "Návrh specielního měřicího zařízení pro kontrolu sražení hran". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231657.
Texto completoPetitdidier, Nils. "Système d'imagerie pour la caractérisation en couches de la peau par réflectance diffuse". Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAD048/document.
Texto completoThis work presents the development of a low-cost, wearable instrument for quantitative monitoring of skin physiological parameters toward non-invasive diagnostics in vivo. The instrument is based on the spatially resolved Diffuse Reflectance Spectroscopy (srDRS) technique, which provides absolute quantification of absorption and scattering endogenous properties of the probed tissue volume with a potential to discriminate between properties of individual skin layers. In the developed instrument, this potential is maximized by the use of a multi-pixel image sensor to perform contact, high resolution imaging of the diffuse reflectance. This study comprises the specification and validation of a novel srDRS system architecture based on the proposed approach, the implementation of this architecture into a low-cost, wearable device and the evaluation of the device performance both on tissue-simulating phantoms and in vivo. Results validate the potential of the instrument for the non-invasive, quantitative monitoring of tissue properties. The described approach is promising for addressing the analysis of layered tissue suchas skin and paves the way for the development of low-cost, wearable devices for continuous, passive monitoring of tissue optical properties
Pejchal, Luboš. "Akviziční jednotka pro zabezpečovací techniku". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219850.
Texto completoMikula, Martin. "Termodiagnostika - dotykové a bezdotykové měření teploty". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231525.
Texto completoMorávek, David. "Měření teploty pneumatik za jízdy vozidla s využitím infračer. pyrometrů OS100". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228260.
Texto completoManuelli, Lucas Ph D. Massachusetts Institute of Technology. "Localizing external contact using proprioceptive sensors : the contact particle filter". Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/115739.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (pages 61-65).
In order for robots to interact safely and intelligently with their environment they must be able to reliably estimate and localize external contacts. This paper introduces the CPF, the Contact Particle Filter, which is a general algorithm for detecting and localizing external contacts on rigid body robots without the need for external sensing. The CPF finds external contact points that best explain the observed external joint torque, and returns sensible estimates even when the external torque measurement is corrupted with noise. We demonstrate the capability of the CPF in multiple scenarios. We show how it can track multiple external contacts on a simulated Atlas robot, and also perform extensive simulation and hardware experiments on a Kuka iiwa robot arm.
by Lucas Manuelli.
S.M.
Siegel, David Mark. "Contact Sensors for Dexterous Robotic Hands". Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/6848.
Texto completoMerlet, Jean-Pierre. "Contribution à la formalisation de la commande par retour d'efforts en robotique : application à la commande de robots parallèles". Paris 6, 1986. http://www.theses.fr/1986PA066296.
Texto completoChamas, Hassan. "Etude de la localisation de nanofils de silicium sur des surfaces Si3N4 et SiO2 micro & nanostructurées". Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00961229.
Texto completoКаштан, Владислав Васильович. "Система вимірювання температури тіла людини". Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/41969.
Texto completoThe project considers the system of thermoregulation of the body and developed a classification of methods for measuring human body temperature, which made it possible to conduct a fundamental analysis and choose a method for further implementation in the device. The project consists of two sections: design and technology. It is set out on 83 pages and contains 38 figures, 13 tables, 16 formulas, 2 appendices, 33 references. The design section shows the features of measuring body temperature of people by remote sensing methods. The optical measurement method was chosen as the basis, where the analysis of existing analogues and known design solutions was performed. The modernization of the existing analogues with the addition of a module for calibration of the infrared radiation receiver, which is realized with the help of a laser diode, a rotary mirror and a stepper motor, is proposed. The general look of the temperature measurement system is developed, the optical principle-functional and electric circuit the necessary calculations are carried out. In the technological section the assembly drawing of the device is developed and calculations connected with working off of the device on manufacturability are carried out. The temperature sensor of the system calibration device was calibrated.
Forsberg, Johan. "Mobile robot navigation using non-contact sensors". Doctoral thesis, Luleå tekniska universitet, EISLAB, 1998. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26184.
Texto completoGodkänd; 1998; 20061122 (haneit)
Devaraj, Thomas Jonathan. "Capacitive sensors for non-contact ECG measurements". Thesis, University of Sussex, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427066.
Texto completoLin, Sheng-Hung y 林勝弘. "Ultra-Slim Contact Image Sensor". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/pu6y2f.
Texto completo國立臺北科技大學
光電與平面顯示器產業研發碩士專班
96
In general, the traditional contact-type image sensor is composed of light source, and opto-mechanical devices and CMOS device that opto- mechanical device includes light-guide, gradient index lens array. When the light source illuminates the document which is needed to be scanned, and makes the light is scattered or reflected by the document. The image of the document will be imaged on the sensor array through the opto-mechanical device. Then, the image of the document can be obtained by the sensor array. The design of the opto-mechanical device will dominate the image quality. The opto-mechanical device plays an important role in this system. In addition, the volume depends on the size of the opto-mechanical device. Therefore, if the opto-mechanical device is removed from the scanning system, not only the volume can be reduced but also the production cost can be lowered. In this research, a new scanning method is developed to achieve this purpose. Light source and sensor are both the main devices in this new scanning method. In this method, the image will be captured by the image sensor by means of diffraction which quality is no less poor than the image sensor consisting of the opto-mechanical device.
Tsao, Hui-hua y 曹慧華. "CPFR CASE STUDY FOR CONTACT IMAGE SENSOR". Thesis, 2009. http://ndltd.ncl.edu.tw/handle/88196914922423770769.
Texto completo東吳大學
企業管理學系
97
In the fast-changing industry enviroment, enterprises have paid a lot of money to invest new technology and new market to gain their own competition advantage. But the new technology progressing and material cost rasing make enterprises faced more difficult business competition. Therefore, the various strategic alliance and cooperation are established. This research is to make the in-depth case analysis for three MFP makers how to cooperate with CIS suppliers and enhance their operational agility by CPFR (Collaborative Planning, Forecasting,and Replenishment ) with information sharing。 We can investigate and survey their individual cooperating result. Usually, the data of order forecasting exists uncertainly and vagueness which forced CIS suppliers to adjust their productin plan to catch the tight delivery, and the replenishment system of JIT and VMI caused the high inventory and low material cycling rate. Therefore, Rolling Forecasting has become a well-known and criticial solution. The research reveals some valuable sugestions are the best model of the order forecasting is to implement“VMI + Rolling Forecasting” system. It is helpful to decrease the high inventory & transportation cost to improve the supply chain performace. This model also can be a reference case for other industries.
Lien, Feng-Hsien y 連奉先. "The Design of a Non-contact Vital-sign Sensor". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/nexp8h.
Texto completo國立臺北科技大學
電資碩士班
101
Conventionally, the electrocardiography(ECG) and the cardiopulmonary monitors require the electrodes attached to the human body. This may discomfort the patients during a long period of time in monitoring their cardiopulmonary activities. On the other hand, the patient may be confined to the monitor by the connection from the monitor, and this may bring him great inconvenience. This work has implemented a vital-sign sensor to overcome such a problem by using a non-contact scheme, which is based on the reflection of the electromagnetic wave and the Doppler effect. The sensor transmits an RF signal toward the human body, and consequently receives the reflected wave from the human body. Since the reflected wave will be modulated with its phase (or frequency) by human beings cardiopulmonary movement, the sensor can simply demodulate the reflected wave to transduce the cardiopulmonary activities into electrical signals. The electrical signals can be further processed to diagnose the breathing- and the heartbeat-rate. In this work, the non-contact vital-sign sensor was implemented to operate at a frequency of 2.4 GHz. This sensor can successfully achieve a sensing distance ranging from 0.001 to 1 m.
郭景一. "Development of a non-contact rotating shaft torque sensor". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/40348076579341135000.
Texto completo國立臺灣科技大學
電機工程系
91
This thesis is concerned with the development of non-contact rotating shaft torque sensor. The torque sensor uses strain gauges to measure the rotating shaft torque, and uses the Wheatstone bridge balanced circuit to convert the shaft stress into a DC voltage signal to calculate the torque value. Rotary transformers are used for non-contacting coupling of excitation and output to and from the rotating strain-gauge bridge. The performance evaluations of torque sensor prototype are conducted with the speed range of 0 to 3000 rpm and torque measuring range of 0 to 1 kg-m. The static experimental results of torque sensor prototype show that the total linearity error is 3.5%, the repeat error is 1.7%, the hysteresis error is 0.9%, and output voltage is 20mV for 0.1 kg-m torque. Other advantages of the proposed system include low-cost, easy calibration and longer lifespan.
Zhang, Yu-Cheng y 張育誠. "Light Guide Bar Design For Contact Image Sensor Module". Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8hy5hg.
Texto completo國立中央大學
光電科學與工程學系
107
In this thesis, a novel concept for the design of a light guide bar has been firstly proposed. We apply a certain blade with high temperature for shaping the necessary grooves on the bottom of the light guide bar. All the sculpturing parameters, including the repeatability of the light guide bars, the accuracy of the groove periods, and the precision for the groove depth, are extensively verified. The groove periods and depths have been carefully optimized in order to have uniform output light distribution. Generally, the PRNU value is requested as low as less than 30 %. The simulation design is then realized in mass production and greatly help the production time and cost.
Yang, Chou Done y 楊朝棟. "The Development of Document Scanning by Contact-type Image Sensor". Thesis, 1996. http://ndltd.ncl.edu.tw/handle/02589507263954158693.
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