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Добірка наукової літератури з теми "Sensor magnetostrictive"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Sensor magnetostrictive"

1

Sun, Ruoqi, Liang Zhang, Heming Wei, Yunzhe Gu, Fufei Pang, Huanhuan Liu, and Tingyun Wang. "Quasi-Distributed Magnetic Field Fiber Sensors Integrated with Magnetostrictive Rod in OFDR System." Electronics 11, no. 7 (March 24, 2022): 1013. http://dx.doi.org/10.3390/electronics11071013.

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Анотація:
We have proposed and designed a fiber-optic magnetic field sensors based on magnetostriction, of which the magnetostrictive induced strain of magnetostrictive rod attached to an optical fiber can be measured by optical frequency-domain reflectometry (OFDR). By analyzing the stress transfer process at the interface between the magnetostrictive rod and the sensing optical fiber, we find that the sensor sensitivity is mainly related to the magnetostrictive material and bond width. The experimental results show the sensor performance under different magnetostrictive rods and radiuses. The sensitivity of the Fe-Ga-based sensor is up to 5.05 με/mT, while the sensitivity of the Tb-Dy-Fe-based sensor is up to 3.42 με/mT. The proposed sensor can easily construct a sensor network for quasi-distributed fiber-optic magnetic field sensing, which can be used to monitor magnetic fields at more than one point.
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2

Zhou, Xin Zhi, Chao Yu, Yin Qi Xiong, and Qian Ning. "Research on Fe(100-x)Gax Alloy Applied to Magnetostrictive Displacement Sensors." Applied Mechanics and Materials 226-228 (November 2012): 2154–59. http://dx.doi.org/10.4028/www.scientific.net/amm.226-228.2154.

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Анотація:
The saturation magnetostriction (λs) for Fe-Ni alloy can only reach 30ppm, leading the magnetostrictive displacement sensor based on the alloy not to be used in the large displacement measurement. Therefore, applying Fe(100-x)Gax alloy, of which maximum λs can reach 400 ppm to giant magnetostrictive displacement sensor is presented. The crystal magnetostrictive model is shown at first; and then the magnetostriction in [100] and [111] directions have the decided advantage over Fe-Ni alloy and Ni alloy is given; besides, the characteristics of high permeability, low coercivity and low hysteresis loss for Fe(100-x)Gax are shown; moreover, the signal of the magnetostrictive displacement sensors made from Fe(100-x)Gax is analyzed. Finally, it is proved that Fe(100-x)Gax (17≤x≤19) is practicable for extending measure range of MDS.
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3

Hathaway, Kristl B., and Arthur E. Clark. "Magnetostrictive Materials." MRS Bulletin 18, no. 4 (April 1993): 34–41. http://dx.doi.org/10.1557/s0883769400037337.

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Анотація:
Smart materials combine sensors, intelligence, and actuators to allow a material to respond to its environment. Magnetostrictive materials can be used as both the sensors and actuators in such materials. High-power magnetostrictive actuators can deliver forces greater than 50 MPa with strains of up to 0.6%, while other magnetostrictive sensor materials can provide hundreds of times the sensitivity of semiconductor strain gages. Magnetoelastic materials also have adaptable elastic moduli which may be varied by external magnetic fields.Magnetostriction is the change in any dimension of a magnetic material caused by a change in its magnetic state. In this article we concentrate on ferromagnetic materials exhibiting Joule magnetostriction, which is a change in linear dimension parallel to an applied magnetic field (see Figure 1), and the reciprocal effect in which the material changes its magnetic state under the influence of applied stress.The phenomenon of magnetostriction has been known for well over a century, since Joule discovered in 1847 the change in length of an iron rod when magnetized. The modern era of magnetostrictive materials began in 1963 with the measurement of nearly 1% magnetostrictive strains at low temperatures in the basal planes of Dy and Tb. A search for magnetostrictive materials with high magnetostriction at room temperature led to the alloying of rare earths with transition metals, culminating in the discovery in 1971 of giant room-temperature magnetostriction in the Laves phase compound TbFe2.
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4

Xu, Shaoyi, Qiang Peng, Chuansheng Li, Bo Liang, Junwen Sun, Fangfang Xing, Hongyu Xue, and Ming Li. "Optical Fiber Current Sensors Based on FBG and Magnetostrictive Composite Materials." Applied Sciences 11, no. 1 (December 26, 2020): 161. http://dx.doi.org/10.3390/app11010161.

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Анотація:
Optical fiber current sensors are widely used in the online monitoring of a new generation power system because of their high electrical insulation, wide dynamic range, and strong anti-electromagnetic interference ability. Current sensors, based on fiber Bragg grating (FBG) and giant magnetostrictive material, have the advantages of high reliability of FBG and high magnetostrictive coefficient of giant magnetostrictive material, which can meet the monitoring requirements of digital power systems. However, giant magnetostrictive materials are expensive, fragile, and difficult to mold, so giant magnetostrictive composite materials have replaced giant magnetostrictive materials as the sensitive elements of sensors. High sensitivity, high precision, wide working range, low response time, and low-cost optical fiber current sensors based on magnetostrictive composites have become a research hotspot. In this paper, the working principle of the sensor, the structure of the sensor, and the improvement of magnetostrictive composite materials are mainly discussed. At the same time, this paper points out improvements for the sensor.
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5

Yang, Zijing, Jiheng Li, Zhiguang Zhou, Jiaxin Gong, Xiaoqian Bao, and Xuexu Gao. "Recent Advances in Magnetostrictive Tb-Dy-Fe Alloys." Metals 12, no. 2 (February 15, 2022): 341. http://dx.doi.org/10.3390/met12020341.

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Анотація:
As giant magnetostrictive materials with low magnetocrystalline anisotropy, Tb-Dy-Fe alloys are widely used in transducers, actuators and sensors due to the effective conversion between magnetic energy and mechanical energy (or acoustic energy). However, the intrinsic brittleness of intermetallic compounds leads to their poor machinability and makes them prone to fracture, which limits their practical applications. Recently, the addition of a fourth element to Tb-Dy-Fe alloys, such as Ho, Pr, Co, Nb, Cu and Ti, has been studied to improve their magnetostrictive and mechanical properties. This review starts with a brief introduction to the characteristics of Tb-Dy-Fe alloys and then focuses on the research progress in recent years. First, studies on the crystal growth mechanism in directional solidification, process improvement by introducing a strong magnetic field and the effects of substitute elements are described. Then, meaningful progress in mechanical properties, composite materials, the structural origin of magnetostriction based on ferromagnetic MPB theory and sensor applications are summarized. Furthermore, sintered composite materials based on the reconstruction of the grain boundary phase also provide new ideas for the development of magnetostrictive materials with excellent comprehensive properties, including high magnetostriction, high mechanical properties, high corrosion resistance and high resistivity. Finally, future prospects are presented. This review will be helpful for the design of novel magnetostrictive Tb-Dy-Fe alloys, the improvement of magnetostrictive and mechanical properties and the understanding of magnetostriction mechanisms.
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6

Yan, Rong Ge, Li Hua Zhu, and Qing Xin Yang. "New Giant Magnetostrictive Force Sensors." Advanced Materials Research 816-817 (September 2013): 424–28. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.424.

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Анотація:
Force sensors, based on the giant inverse magnetostrictive effect, have a series of outstanding properties, such as large overload capacity, which make them have more and more applications to the field of automatic control system of heavy industry, chemical industry. This paper designs new giant magnetostrictive force sensors using the rare-earth iron giant magnetostrictive materials. With the designed giant magnetostrictive force sensor, the relations between magnetic flux density in the gap and applied static stress on the sensor, the inductive voltage in the coil and time (with the dynamic stress), are calculated by finite element analysis software. The related confirmatory experiments have been conducted. The experimental results indicate that the giant magnetostrictive force sensor is fit for static and dynamic force measurement. In order to enlarge the measurement range, the designed force sensor as the basic cell is combined. This paper gives two kinds of combinations, which have the feature of adjustable range.
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7

Nakajima, Kenya, Marc Leparoux, Hiroki Kurita, Briac Lanfant, Di Cui, Masahito Watanabe, Takenobu Sato, and Fumio Narita. "Additive Manufacturing of Magnetostrictive Fe–Co Alloys." Materials 15, no. 3 (January 18, 2022): 709. http://dx.doi.org/10.3390/ma15030709.

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Анотація:
Fe–Co alloys are attracting attention as magnetostrictive materials for energy harvesting and sensor applications. This work investigated the magnetostriction characteristics and crystal structure of additive-manufactured Fe–Co alloys using directed energy deposition. The additive-manufactured Fe–Co parts tended to exhibit better magnetostrictive performance than the hot-rolled Fe–Co alloy. The anisotropy energy ΔK1 for the Fe–Co bulk, prepared under a power of 300 W (referred to as bulk−300 W), was larger than for the rolled sample. For the bulk−300 W sample in a particular plane, the piezomagnetic constant d was large, irrespective of the direction of the magnetic field. Elongated voids that formed during additive manufacturing changed the magnetostrictive behavior in a direction perpendicular to these voids. Magnetic property measurements showed that the coercivity decreased. Since sensors should be highly responsive, Fe–Co three-dimensional parts produced via additive manufacturing can be applied as force sensors.
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8

Furuya, Yasubumi, Teiko Okazaki, Chihiro Saito, and Munekatsu Shimada. "Magnetostrictive Galfenol Torque Sensor Devices for Smart by-Wire Steering System in Automobile Technology." Advances in Science and Technology 67 (October 2010): 74–81. http://dx.doi.org/10.4028/www.scientific.net/ast.67.74.

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Анотація:
Polycrystalline Galfenol (Fe-Ga-X, X=Al, C, Zr etc.) alloys were fabricated as a bulk sample from rapid-solidified powders or ark-melted and annealing process method for enhancing various engineering applicabilities of this magnetostrictive alloy. Especially, (Fe-Ga0.15-Al0.05)99.0-Zr0.5-C0.5 [at.%] sample showed a maximum magnetostriction of λmax=90ppm to 150ppm as well as a tensile stress over σ=800MPa. This large magnetostriction is mainly caused by non-precipitating of the ordered A2 phases without the excessive precipitation of ordered phases such as fcc ordered L12, bcc ordered D03 phases and the remained [100] oriented strong textures by a heat treatment. Based on the improvements of these properties in the developed bulk Galfenol alloys, secondarily, we will introduce an application as a smart torque sensor by utilizing Galfenol-ring around the shaft for steering-by-wire system of automobile. A torque sensing system by using the magnetostrictive ring of Galfenol alloy was developed and magnetic flux leakage from the ring attached on the rotating shaft was experimentally measured by using differential Hall probe sensor. The sensitivity of this type of torque-sensor shows a strong dependency of metallurgical microstructure and the residual stress (i.e.hoop-stress) in the ring due to sensor shows a strong dependency of the residual stress (i.e.hoop-stress) in the ring due to the fitting level. A promising result on ring-type and single-structured inverse magnetostrictive torque sensor will be presented.
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9

Liu, Hui Fang, Han Yu Wang, and Yu Zhang. "Research on the Application Status of Giant Magnetostrictive Material in Drive Field." Applied Mechanics and Materials 733 (February 2015): 249–52. http://dx.doi.org/10.4028/www.scientific.net/amm.733.249.

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Анотація:
The concept of giant magnetostrictive material, characteristics and main effects were introduced briefly. The actuators based on GMM’s magnetostrictive effect, sensors based on inverse-magnetostrictive effect and self-sensing actuators based on the coupled effects were reviewed. It proposed that self-sensing actuators and sensor actuators on the basis of coupling relationship of magnetostrictive effect, inverse-magnetostrictive effect and other effects were GMM’s new research direction.
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10

Zhu, Zhi Wen, Qing Xin Zhang, and Jia Xu. "Hysteretic Nonlinear Characteristics of Giant Magnetostrictive Sensors." Applied Mechanics and Materials 479-480 (December 2013): 667–71. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.667.

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Анотація:
Hysteretic nonlinear characteristics of giant magnetostrictive sensor were studied in this paper. Nonlinear difference items were introduced to interpret the hysteresis phenomena of the strain-magnetic field intensity (MFI) curves of giant magnetostrictive material (GMM). The coupling relationship between strain and frequency was obtained in partial least-square regression method to describe the driftage phenomena of the strain-MFI curves of GMM in different frequencies. The mechanical model of giant magnetostrictive sensor was developed, and the nonlinear relationship between output voltage of giant magnetostrictive sensor and input excitation force was obtained. The nonlinear characteristics of giant magnetostrictive sensor were discussed, and the phenomena of accuracy aggravation in high frequency and delay of giant magnetostrictive sensor were explained. The new giant magnetostrictive sensor model has simple form and is easy to be analyzed in theory, which is helpful to measuring and control.
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Більше джерел

Дисертації з теми "Sensor magnetostrictive"

1

Lu, Yong. "Thin film magnetostrictive sensor with on-chip readout." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq22216.pdf.

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2

Liang, Cai Prorok Barton Charles. "Development of bulk-scale and thin-film magnetostrictive sensor." Auburn, Ala., 2007. http://repo.lib.auburn.edu/EtdRoot/2007/FALL/Materials_Engineering/Dissertation/Liang_Cai_15.pdf.

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3

Orono, Lisa Lorraine. "Novel sensor for rapid detection of blood cell types magnetostrictive microcantilevers /." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/master's/ORONA_LISA_41.pdf.

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4

Li, Menghui. "Fabrication of reliable, self-biased and nonlinear magnetoelectric composites and their applications." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/50656.

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Анотація:
The magnetoelectric (ME) effect, i.e., the induction of magnetization by an applied electric field (E) or a polarization by an applied magnetic field (H), is of great interest to researchers due to its potential applications in magnetic sensors. Moreover, the ME effect in laminate composites is known to be much higher than in single phase and particulate composites due to combination of the magnetostrictive and piezoelectric effects in the individual layers. Given that the highest ME coefficient have been found in Metglas/piezo-fiber laminate composites, this study was designed to investigate and enhance the magnetoelectric (ME) effect in Metglas/piezo-fiber laminate composites, as well as develop their potential for magnetic sensor applications. To initiate this investigation, a theoretical model was derived to analyze the thickness effect of the magnetostrictive, piezoelectric, epoxy and Kapton layers on the ME coefficient. As a result, the importance of the coupling effect by epoxy layers was revealed. I used spin-coating, vacuum bagging, hot pressing, and screen printing techniques to decrease the thickness of the epoxy layer in order to maintain homogeneity, and to obtain good repeatability of the 16 ME laminates fabricated at one time. This protocol resulted in a more efficient way to induce self-stress to Metglas/PZT laminates, which is essential for increasing the ME coefficient. With an enhanced ME effect in the Metglas/piezo-fiber laminates, magnetic field sensitivity could then be increased. An ME sensor unit, which consisted of a Metglas/PMN-PT laminate and a low noise charge amplifier, had a magnetic field sensitivity of 10 pT/Hz0.5 in a well-shielded environment. Stacking four of these ME laminates could further increase the signal-to-noise (SNR) ratio. I studied the optimized distance between a pair of Metglas/PZT ME laminates. A stack of up to four ME sensors was constructed to decrease the equivalent magnetic noise. The magnetic field sensitivity was effectively enhanced compared to a single laminate. Finally, a number of four Metglas/PZT sensor units array was constructed to further increase the sensitivity. ME laminate composites operated in passive mode have typically required an external magnetic bias field in order to maximize the value of the piezomagnetic coefficient, which has many drawbacks. I studied the ME effect in an Ni/Metglas/PZT laminate at zero bias field by utilizing the remnant magnetization between the Ni and Metglas layers. To further enhance this effect, annealed Metglas was bonded on the Metglas/PZT laminate since it is known that hard-soft ferromagnetic bilayers generate built-in magnetic field in these Metglas layers. As a result, giant αME values could be achieved at a zero bias field at low frequency range or at electromechanical resonance (EMR). The sensor unit consisting of self-biased ME laminate arrays is considerably smaller compared to a unit that uses magnet-biased ME laminates. Introducing the converse ME effect and nonlinear ME effect in Metglas/piezo-fiber laminates affords a variety of potential applications. Therefore, I theoretically and experimentally studied converse ME effects in laminates with longitudinally magnetized and longitudinally poled, or (L-L) mode. The optimum structure for producing the maximum effect was obtained for Metglas/PZT laminates. Additionally, the optimum structure and materials for enhancing the nonlinear ME effect in Metglas/PZT laminates are reviewed herein. In particular, this study revealed that modulating the EMR in laminates with high-Q piezo-fibers could enhance the SNR. The stress effect on nonlinear ME effect is also discussed—namely that magnetic field sensitivities can be enhanced by this modulation-demodulation technique.
Ph. D.
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5

Munusamy, Rajkumar. "Cordless displacement sensor using Fe₇₇_.₅Si₇_.₅B₁₅ and Metglas 2605SC magnetostrictive materials." Thesis, University of Hull, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440228.

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6

Marciszko, Fredrik. "Torque Sensor based Powertrain Control." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2248.

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Анотація:

The transmission is probably the drivetrain component with the greatest impact on driveability of an automatic transmission equipped vehicle. Since the driver only has an indirect influence on the gear shift timing, except for situations like kick-down accelerations, it is desirable to improve shift quality as perceived by the driver. However, improving shift quality is a problem normally diametrically opposed to minimizing transmission clutch energy dissipation. The latter has a great impact on transmission lifetime, and has to be defined and taken into consideration along with the notion of shift quality. The main focus of this thesis is the modeling of a drivetrain of an automatic transmission vehicle, and the implementation in MatLab/Simulink, including the first to second gear upshift. The resulting plant based on the derived equations is validated using data from a test vehicle equipped with a torque sensor located at the transmission output shaft. The shaft torque is more or less proportional to the driveline jerk, and hence of great interest for control purposes. Control strategies are discussed and a PID controller structure is developed to control the first to second gear upshift, as opposed to the traditional open-loop upshift control. Furthermore, the proposed controller structure uses the transmission output torque and the differential speed of the engaging clutch as inputs, to control the clutch pressure and the engine output torque, respectively. The structure is unsophisticated and transparent compared to other approaches, but shows great theoretical results in terms of improved shift quality and decreased clutch wear.

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7

Starke, E., U. Marschner, A. B. Flatau, and J. H. Yoo. "Improved equivalent circuit modeling and simulation of magnetostrictive tuning fork gyro sensors." SPIE, 2017. https://tud.qucosa.de/id/qucosa%3A35136.

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Анотація:
In this paper a new equivalent circuit is presented which describes the dynamics of a prototype micro-gyro sensor. The concept takes advantage of the principles employed in vibratory gyro sensors and the ductile attributes of GalFeNOL to target high sensitivity and shock tolerance. The sensor is designed as a tuning fork structure. A GalFeNOL patch attached to the y-z surface of the drive prong causes both prongs to bending the x-z plane (about the y axis) and a patch attached to the x-z surface of the sensing prong detects Coriolis-force induced bending in the y-z plane (about the x axis). A permanent magnet is bonded on top of each prong to give bias magnetic fields. A solenoid coil surrounding the drive prong is used to produce bending in the x-z plane of both prongs. The sensing prong is surrounded by a solenoid coil with N turns in which a voltage proportional to the time rate of change of magnetic flux is induced. The equivalent circuit enables the efficient modeling of a gyro sensor and an electromechanical behavioral simulation using the circuit simulator SPICE. The prongs are modeled as wave guiding bending beams which are coupled to the electromagnetic solenoid coil transducer. In contrast to known network approaches, the proposed equivalent circuit is the first tuning fork model, which takes full account of the fictitious force in a constant rotating frame of reference. The Coriolis force as well as the centrifugal force on a concentrated mass are considered.
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8

Zhou, Yuan. "Magnetoelectric Composites for On-Chip Near-Resonance Applications." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/50488.

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Анотація:
Magnetoelectric (ME) effect is defined as the change in dielectric polarization (P) of a material under an applied magnetic field (H) or an induced magnetization (M) under an external electric field (E). ME materials have attracted number of investigators due to their potential for improving applications such as magnetic field sensors, filters, transformers, memory devices and energy harvesters. It has been shown both experimentally and theoretically that the composite structures consisting of piezoelectric and magnetostrictive phases possess stronger ME coupling in comparison to that of single phase materials. Giant magnetoelectric effect has been reported in variety of composites consisting of bulk-sized ME composites and thin film ME nanostructures. In this dissertation, novel ME composite systems are proposed, synthesized and characterized in both bulk and thin films to address the existing challenges in meeting the needs of practical applications. Two applications were the focused upon in this study, tunable transformer and dual phase energy harvester, where requirements can be summarized as: high ME coefficient under both on-resonance and off-resonance conditions, broad bandwidth, and low applied DC bias. In the first chapter, three challenges related to the conventional ME behavior in bulk ME composites have been addressed (1) The optimized ME coefficient can be achieved without external DC magnetic field by using a self-biased ME composite with a homogenous magnetostrictive material. The mechanism of such effect and its tunability are studied; (2) A near-flat ME response regardless of external magnetic field is obtained in a self-biased ME composite with geometry gradient structure; (3) By optimizing interfacial coupling with co-firing techniques, the ME coefficient can be dramatically enhanced. Theses co-fired ME laminates not only exhibit high coupling coefficient due to direct bonding, but also illustrate a self-biased effect due to the built-in stress during co-sintering process. These results present significant advancement toward the development of multifunctional ME devices since it eliminates the need for DC bias, expands the working bandwidth and enhances the ME voltage coefficient. Next, magnetoelectric nanocomposites were developed for understanding the nature of the growth of anisotropic thin film structures. In this chapter following aspects were addressed: (1) Controlled growth of nanostructures with well-defined morphology was obtained. Microstructure and surface morphology evolution of the piezoelectric BaTiO3 films was systematically analyzed. A growth model was proposed by considering the anisotropy of surface energy and the formation of twin lamellae structure within the frame work of Structure Zone Model (SZM) and Dynamic Scaling Theory (DST). In parallel to BaTiO3 films, well-ordered nanocomposite arrays [Pb1.1(Zr0.6Ti0.4)O3/CoFe2O4] with controlled grain orientation were developed and investigated by a novel hybrid deposition method. The influence of the pre-deposited template film orientation on the growth of ME composite array was studied. (2) PZT/CFO/PZT thick composite film and BTO/CFO thin film were synthesized using sol-gel deposition (SGD) and pulsed laser deposition (PLD) techniques, respectively. The HRTEM analysis revealed local microstructure at the interface of consecutive constituents. The interfacial property variation of these films was found to affect the coupling coefficient of corresponding ME nanocomposites. Subsequently, a novel complex three-dimensional ME composite with highly anisotropic structure was developed using a hybrid synthesis method. The influence of growth condition on the microstructure and property of the grown complex composites was studied. The film with highly anisotropic structure was found to possess tailored ferroelectric response indicating the promise of this synthesis method and microstructure. Based on the laminated ME composites, three types of ME tunable transformer designs were designed and fabricated. The goal was to develop a novel ME transformer with tunable performance (voltage gain and/or working resonance frequency) under applied DC magnetic field. Conventional ME transformers need either winding coil or large external magnetic field to achieve the tunable feature. Considering the high ME coupling of ME laminate, two ME transformers were developed by epoxy bonding Metglas with transversely/longitudinally poled piezoelectric ceramic transformer. The influence of different operation modes toward magnetoelectric tunability was analyzed. In addressing the concern of the epoxy bonding interface, a co-fired ME transformer with unique piezoelectric transformer/magnetostrictive layer/piezoelectric transformer trilayer structure was designed. The design and development strategy of thin film ME transformer was discussed to illustrate the potential for ME transformer miniaturization and on-chip integration. Lastly, motivated by the increasing demand of energy harvesting (EH) systems to support self-powered sensor nodes in structural health monitoring system, a magnetoelectric composite based energy harvester was developed. The development and design concept of the magnetoelectric energy harvester was systematically discussed. In particular, the first dual-phase self-biased ME energy harvester was designed which can simultaneously harness both vibration and stray magnetic field (Hac) in the absence of DC magnetic field. Strain distribution of the EH was simulated using the finite element model (FEM) at the first three resonance frequencies. Additionally, the potential of transferring this simple EH structure into MEMS scalable components was mentioned. These results provide significant advancement toward high energy density multimode energy harvesting system.
Ph. D.
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9

Felizari, Alessandra. "Caracterização e monitoramento remoto aplicado a um sensor magnetoelástico." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/149791.

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Анотація:
Uma vasta gama de sensores são aplicados no mercado atual na busca pela melhoria de processos e produtos. Há um grande crescimento em novos sistemas que possam apresentar recursos que técnicas convencionais não apresentam. A busca por uma nova plataforma de sensoriamento surge a partir do interesse em identificar e controlar parâmetros ambientais isolados. Esta pesquisa em área incipiente no Brasil mostra o desenvolvimento de um sensor a partir de um material inteligente (smart material), que por definição, possui uma ou mais propriedades que podem sofrer mudanças significativas a partir de um estímulo externo. O presente trabalho é baseado na investigação de uma fita de material magnético amorfo, que ao exibir propriedades magnéticas e elásticas pelo efeito da magnetostricção, permite o monitoramento remoto de fenômenos físico-químicos do ambiente em que estiver exposta. O desenvolvimento deste sensor tem finalidade no monitoramento sem fio de solicitação mecânica, e alteração do tipo de fluido presente em um dado ambiente. O estudo e avaliação do sensor contou com técnicas de caracterização experimentais e de simulação. São apresentados sistemas e ensaios capazes verificar as ressonâncias do modo de vibração puro da amostra a partir de medidas ópticas e elétricas, quando submetidos a variação de fenômenos físicos. Os resultados indicam a dependência do efeito direto ao estímulo na ação externa do campo magnético em decorrências das características do material. Os resultados quantificados e qualificados na correlação entre os métodos utilizados, justificam a aplicação do smart material no sensoriamento de viscosidade e carregamento aplicado em ambientes isolados. Em consequência das discussões apresentadas para as curvas comportamentais na variação dos parâmetros físico-químico a plataforma de sensoriamento é validada.
New amorphous magnetic materials have magnetic and elastic properties which allows the identification and control of environmental parameters remotely. This work was based in the investigation of a magnetoelastic thin strip, widely used as anti-theft device. In this study it was discussed the employment of this material as a sensor capable identify an environmental change through magnetoelasticity. In order to characterize the strips it was employed several techniques, namely: finite element modeling of the vibrational modes, electromagnetic impedance and laser interferometry. It was presented an analysis of the displacement of the longitudinal modes. The knowledge of the vibration mode allowed the sensor electric characterization when subjected to environmental changes. According to the sample dimensions under magnetic field, test systems were developed in order to perform optic and electric measurements. A proper parameter adjustment of the power supply allowed the determination of the fundamental and higher order resonance frequencies. The magnetostrictive behaviour of the anti-theft strips is related to the Young modulus where the vibration frequency is inversely proportional to the length of the strip. Studies showed that the strip performance is also related to many other parameters, such as the mechanical and electromagnetic properties and the environment to which it is exposed. The strips here presented are largely employed as sensor for temperature, pressure, density, mas variation, viscosity and flux velocity mainly because their wireless capabilities. The data from the polarization field are a section of the knowledge required to better investigate the best performance of the sensor. The sensor characterization through several techniques applied in viscous media and under pressure raise some issues. However, the construction of some devices allowed the application of different values of viscosity and pressure upon the magnetized strip. This made the results interpretation less complex. The resonances were observed in the experimental data and mathematical modellin. Calibration curves were defined to make the results interpretation easier.Previously applied and studied techniques which cover the characterization and behaviour of the material provide valid justifications for the implementation of remote sensors made of amorphous metallic strips. The results presented here justify the application of the analysed amorphous strip as a viscosity and pressure sensor in isolated enviroments.
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Скворчевський, Олександр Євгенович, та Христина Михайлівна Віленська. "Електрогідравлічні мехатронні модулі поступального руху: історія, сучасний стан, перспективи розвитку". Thesis, Харківський національний автомобільно-дорожній університет, 2014. http://repository.kpi.kharkov.ua/handle/KhPI-Press/28258.

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Метою робота є аналіз існуючих електрогідравлічних мехатронних модулів поступального руху, виявлення основних напрямків їх розвитку та перспектив подальшого вдосконалення. В результаті прослідковано еволюцію таких систем. Запропоноване схемне рішення мехатронного модуля для проведення подальших науково-дослідних та проектно-конструкторських робіт в цьому напрямку.
The aim is to analyze existing electro-mechatronic modules translational motion, identifying the main areas of development and prospects for further improvement. The result followed the evolution of such systems. The proposed schematics mechatronic module for further research and design work in this direction.
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Книги з теми "Sensor magnetostrictive"

1

Kwun, H. Feasibility of magnetostrictive sensor inspection of containments. Washington, DC: Division of Engineering Technology, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1999.

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Частини книг з теми "Sensor magnetostrictive"

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Zhao, Xuan, Bowen Wang, Shaoyang Gao, Shasha Liu, Yuanye Zhang, and Ling Weng. "Magnetostrictive Tactile Sensor Array for Robotic Grasping." In Proceedings of 2021 Chinese Intelligent Automation Conference, 599–606. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6372-7_65.

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Wallin, C., and L. Gustavsson. "Non-Contact Magnetostrictive Torque Sensor — Opportunities and Realisation." In Advanced Microsystems for Automotive Applications Yearbook 2002, 184–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-18213-6_22.

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Ramasamy, M., and B. C. Prorok. "Resonance Behavior of Magnetostrictive Sensor in Biological Agent Detection." In Experimental and Applied Mechanics, Volume 6, 875–76. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9792-0_124.

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Yanbing, Liu, and Zhang Jinru. "The Relation of the Sensitivity of an Optical Fibre Magnetostrictive Sensor to It’s Magnetostrictive Jacket Thickness." In Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering, 774–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-48372-1_164.

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Dong, Liyuan, Shaopeng Yu, Tingting Han, Bowen Wang, and Xinxin Cui. "Study of Giant Magnetostrictive Thin Film Pressure Sensor Based on Villari Effect." In Lecture Notes in Electrical Engineering, 459–67. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6508-9_55.

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Li, Runyu, Zhizhong Zhao, Zhiqiang Wang, Haifeng Wang, Wensheng Zhang, and Bowen Wang. "Design and Output Characteristics of Magnetostrictive Sensor Array for Tire Pattern Detection." In Proceedings of 2021 Chinese Intelligent Automation Conference, 90–97. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6372-7_11.

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Xu, Cheng, Yueming Liu, and Yuchan Liu. "Design of Resonant Magnetic Field Sensor Based on Magnetostrictive Optical Fiber Micro-cantilever." In Lecture Notes in Electrical Engineering, 233–42. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4110-4_29.

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Dagenais, D. M., F. Bucholtz, and K. P. Koo. "Heterodyne Detection of Magnetic Fields from 0.1 Hz to 10 MHz in a Magnetostrictive Fiber Sensor." In Springer Proceedings in Physics, 255–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-75088-5_39.

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Liu, Xiucheng, Bin Wu, and Cunfu He. "A Novel Integrated Sensor for Stress Measurement in Steel Strand Based on Elastomagnetic and Magnetostrictive Effect." In Lecture Notes in Mechanical Engineering, 65–73. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09507-3_7.

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Urakami, Seigo, Kota Fukuda, Junji Ono, Tomoyuki Miyazaki, and Shinji Okada. "Proposal of Application of Magnetostrictive Torque Sensor in EV—Seamless 2-Speed Shifting with Torque Feedback Control." In Proceedings, 509–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-61515-7_45.

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Тези доповідей конференцій з теми "Sensor magnetostrictive"

1

Weld, Kevin, Mehmet Uras, and A. Galip Ulsoy. "Modeling and Validation of a Constant Flux Magnetostrictive Impact Sensor." In ASME 2017 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dscc2017-5085.

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A constant flux magnetostrictive impact sensor is presented along with a discussion of prior applications and previous work on modeling of magnetostrictive sensors. A constant flux magnetostrictive impact sensor, which uses a permanent magnet, is modeled and the system in which it operates is overviewed. A detailed analytical model of the operation of the constant flux magnetostrictive impact sensor is developed. Prototype sensors were tested in both dynamic gap and magnetostrictive modes of operation. The model is validated through comparison of modeling and experimental results.
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Klauber, Robert D., Erik B. Vigmostad, Jon Van Gerpen, Delmar Van Meter, Frederick P. Sprague, and Fred Reiter. "Miniature Magnetostrictive Misfire Sensor." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/920236.

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3

Utsui, Yoshihiko, Hiroshi Satoh, and Yasuyuki Makigawa. "Magnetostrictive Type Torque Sensor." In Autotechnologies Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1991. http://dx.doi.org/10.4271/910003.

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Uras, Mehmet H. "Magnetostrictive Dynamic Strain Sensor." In SAE 2001 World Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2001. http://dx.doi.org/10.4271/2001-01-0617.

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Albach, Th, P. Horn, J. Ilg, S. Friedrich, A. Sutor, and R. Lerch. "C6.4 - Towards a Magnetostrictive Mirco-Loudspeaker." In SENSOR+TEST Conferences 2011. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2011. http://dx.doi.org/10.5162/sensor11/c6.4.

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Calkins, Frederick, Alison Flatau, and Marcelo Dapino. "Overview of magnetostrictive sensor technology." In 40th Structures, Structural Dynamics, and Materials Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-1551.

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Albach, Thorsten, Alexander Sutor, and Reinhard Lerch. "A8.4 - Measuring Technology for a Magnetostrictive Microactuator." In SENSOR+TEST Conferences 2009. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2009. http://dx.doi.org/10.5162/sensor09/v2/a8.4.

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Ramasamy, Madhumidha, and Barton C. Prorok. "Resonance Behavior of Magnetostrictive Sensor in Biological Agent Detection." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37162.

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The growing threat of biowarfare agents and bioterrorism has led to the development of specific field tools that perform rapid analysis and identification of encountered suspect materials. One such technology, recently developed is a microscale acoustic sensor that uses experimental modal analysis. Ferromagnetic materials with the property to change their physical dimensions in response to changing its magnetization can be built into such sensors and actuators. One such sensor is fashioned from Metglas 2826mb, a Magnetostrictive strip actuated in their longitudinal vibration mode when subjected to external magnetic field. Due to mass addition, these magnetostrictive strips are driven to resonance with a modulated magnetic field resulting in frequency shifts. In vibration mechanics the frequency shift for a certain amount of mass will have a tolerance limit based on their distribution and discrete position over the sensor platform. Moreover lateral positioning of same amount of mass does not influence the resonant frequency shift of the sensor. In this regard, this work concentrates on developing a model correlating experimental and numerical simulations to determine the mass of E.coli O157:H7 cells attached to the sensor platform.
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Yuan, Mei, Dongya Sun, Ke Sun, Jinghui Wu, Zhaoyang Wang, and Lei Shi. "Key Technology of Magnetostrictive Fuel Sensor." In 2006 IEEE International Conference on Industrial Informatics. IEEE, 2006. http://dx.doi.org/10.1109/indin.2006.275734.

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Raghunath, Ganesh, Alison B. Flatau, Suok-Min Na, and Brett Barkley. "Development of a Bio-Inspired Tactile Magnetostrictive Whisker Sensor Using Alfenol." In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/smasis2014-7550.

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Alfenol (FexAl100−x) is an alloy similar to Galfenol (Fe-Ga alloys) in crystal lattice structure and magnetostriction trend (peaking at ∼20% composition). Although single-crystal Fe80Al20 exhibits lower magnetostriction (∼184 ppm, about half of Fe80Ga20), its magneto-elastic coupling coefficient is on par with that of Fe-Ga. In addition, characteristics such as machinability and rollability are superior to that of Galfenol, making it possible to achieve textured sheets (thickness∼200 μm) which, while having a high elastic modulus, are very flexible. Furthermore, Aluminum is non toxic, cheap (∼1% the cost of Ga) and is available in abundance. These attributes make Alfenol an ideal candidate for a bio-inspired whisker-like tactile sensor (mimicking mystacial vibrissae of cats, sea lions, etc.). This work deals with the design and development of an accurate, cost efficient, real-time, and non-invasive sensor prototype that tracks displacements, vibrations and scour on bridge piers with minimal signal conditioning. Making such a sensor is possible thanks to Alfenol’s linear response to strain in the presence of appropriate bias magnets. The change in its magnetic state due to inverse magnetostriction from applied bending stresses will be observed using Hall Effect sensors to derive deflection information. A protocol to manufacture rolled and textured Alfenol whisker samples will be presented in this research. The effect of bias conditions on sensor performance will be studied empirically and by using multi-physics simulations. Optimization of the sensor by varying the dimensions of the whisker, and its correlation to flux leakage will also be examined followed by an effort to understand the micro-magnetic response of Alfenol to mechanical stimulation. Finally, results from using this biomimetic sensor to measure displacements and vibrations, and its viability to be used as a flow sensor will be discussed. The robustness of this sensor has been exploited to develop a novel real-life application to provide an early warning system for bridge pier scour due to soil transportation during a weather event. The effectiveness of these sensors for scour detection in riverbeds will subsequently be simulated in a water flume and analyzed.
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Звіти організацій з теми "Sensor magnetostrictive"

1

Glass, Samuel W., John P. Lareau, Kenneth A. Ross, Sayed Ali, Francisco Hernandez, and Borja Lopez. Magnetostrictive Cold Spray Sensor Feasibility Assessment. Office of Scientific and Technical Information (OSTI), September 2018. http://dx.doi.org/10.2172/1475067.

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Kwun, H. Feasibility of Magnetostrictive Sensor Inspection of Containments. Office of Scientific and Technical Information (OSTI), March 1999. http://dx.doi.org/10.2172/5052.

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JT Evans. Testing Results of Magnetostrictive Ultrasonic Sensor Cables for Signal Loss. Office of Scientific and Technical Information (OSTI), May 2005. http://dx.doi.org/10.2172/883695.

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Dapino, Marcelo J., Ralph C. Smith, Frederick T. Calkins, and Alison B. Flatau. A Magnetoelastic Model for Villari-Effect Magnetostrictive Sensors. Fort Belvoir, VA: Defense Technical Information Center, January 2002. http://dx.doi.org/10.21236/ada451947.

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Chen, Yonghua. Development of highly magnetostrictive composites for applications in magnetomechanical torque sensors. Office of Scientific and Technical Information (OSTI), December 1999. http://dx.doi.org/10.2172/754838.

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