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Journal articles on the topic 'Eddy current resistance'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Matsumura, Noriaki, Hiroshi Machida, and Takafumi Nakahara. "Equivalent Resistance Analysis of an Eddy Current Displacement Sensor." IEEJ Transactions on Fundamentals and Materials 125, no. 4 (2005): 301–8. http://dx.doi.org/10.1541/ieejfms.125.301.

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2

Takahashi, Norio, Akira Akagi, Masanori Nakano, Yuhito Doi, and Daisuke Miyagi. "Examination of eddy current in laminated core without insulation." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 1/2 (2013): 95–105. http://dx.doi.org/10.1108/compel-11-2012-0330.

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Purpose – In the laminated core of transformer, motor, etc. each electrical steel sheet is usually insulated in order to reduce the eddy current loss. Raw steel sheets without insulation are sometimes used in a small core of electrical machines and electronic equipments, because the cost of iron core can be reduced if cheap steel sheets without insulation are used in the core. The purpose of the paper is to show how the contact resistance between sheets of laminated core affects the interlaminar eddy current and to show the criterion for judgment of the necessity of insulation. Design/methodol

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3

Pieniążek, Jacek, and Paulina Ryba. "Eddy-Current Sensor for a Tachometer." Transactions on Aerospace Research 2017, no. 2 (2017): 57–68. http://dx.doi.org/10.2478/tar-2017-0015.

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Abstract The speed of a rotor or rotors of a turbine engine is important information on its operation. Due to the specific conditions, in which the measurement is taken in a turbine engine, which in particular applies to small engines that are becoming increasingly popular in manned and unmanned aviation, the most universal detector is the detector using the phenomenon of eddy currents. This article presents the developed detector system solution. The correct operation of a detector is conditional upon the possibility to detect the presence of a blade in the detection field in a reliable manne

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4

Taram, Abdoulaye, Cyrielle Roquelet, Philip Meilland, et al. "Nondestructive testing of resistance spot welds using eddy current thermography." Applied Optics 57, no. 18 (2018): D63. http://dx.doi.org/10.1364/ao.57.000d63.

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5

Baharom, M. Z., M. Z. Nuawi, G. Priyandoko, S. M. Harris, and M. Z. Omar. "Electromagnetic Braking Using Eddy Current Resistance for Stationary Exercise Bike." Advanced Science Letters 19, no. 11 (2013): 3143–47. http://dx.doi.org/10.1166/asl.2013.5163.

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6

Faraj, Moneer A., Fahmi Samsuri, Ahmed N. AbdAlla, Damhuji Rifai, Kharudin Ali, and Y. Al-Douri. "Hybrid GMR/IR probe to reduce the effects of lift-off." Measurement and Control 52, no. 5-6 (2019): 588–98. http://dx.doi.org/10.1177/0020294019827336.

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Eddy current testing technique is being utilized in engineering, such as in nuclear steam pipe, aircraft and gas/oil pipeline, due to its sensitivity to small cracks and subsurface defects, immediate results, environmental friendliness, and use in examining complex sizes and shapes of substances. However, the lift-off noise due to irregular inspected materials surface, varying coating thicknesses, or movement of transducers extremely limits the implementation of eddy current testing in a non-disastrous testing which impacts the measure of defect depth on the conductive material. In this paper,

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7

Pasadas, Dario Jerónimo, A. Lopes Ribeiro, Tiago Jorge Rocha, and Helena Maria Geirinhas Ramos. "Remote field eddy current tube inspection using giant magneto-resistance sensors." International Journal of Industrial Electronics and Drives 1, no. 3 (2014): 167. http://dx.doi.org/10.1504/ijied.2014.064093.

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8

Myatt, R. L., and R. D. Pillsbury. "DC resistance and eddy current losses in the ITER conductor joint." IEEE Transactions on Appiled Superconductivity 5, no. 2 (1995): 996–99. http://dx.doi.org/10.1109/77.402718.

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9

Jomdecha, Cherdpong, and Isaratat Phung-On. "Analysis of Eddy-Current Measurement System for Residual Stress Assessment in Stainless Steel Grade 304." Key Engineering Materials 659 (August 2015): 623–27. http://dx.doi.org/10.4028/www.scientific.net/kem.659.623.

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The objective of this paper is an analysis of statistical discreteness and measurement capability of an eddy-current measurement system for residual stress assessment in stainless steel Grade 304 (SS304). Cylindrical specimens with 50 mm in diameter and 12 mm thickness were prepared to generate residual stress by Resistance Spot Welding at which the welding currents were set at 12, 14, and 16 kA. The eddy-current measurement system was including a probe with frequency range of 0.1 to 3 MHz and an eddy current flaw detector. They were performed by contacting the probe on the specimen. The measu

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10

Jiang, Lei, Xiao Zhang Zhang, Yu Jie Bai, and Chang Liang Tang. "Preliminary Experiment of CFRP Displacement Direct Measurement with Eddy Current Sensor." Applied Mechanics and Materials 241-244 (December 2012): 3–8. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.3.

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Displacement and vibration can always be found during the applications of CFRP ( carbon fibe reforced polymer). So it’s quite meaningful to measure the displacement of CFRP directly. Eddy current sensor is a promising tool for this measurement. CFRP presents great heterogeneity and high anisotropy in electromagnetic properties. At the same time, it has been proved that CFRP has quite weak conductivity. All of these means great challenge to the use of eddy current sensor, as the sensitivity would be much lower compared with traditional material such as aluminum. Many experiments have been carri

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11

Felicetti, Roberto, Curt Johan David Abrahamsson, and Urban Lundin. "The influence of eddy currents on the excitation winding impedance of solid and laminated salient pole synchronous machines." Electrical Engineering 102, no. 4 (2020): 2553–66. http://dx.doi.org/10.1007/s00202-020-01053-z.

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Abstract This work investigates the establishment of steady-state eddy currents in solid and laminated salient poles and rotor rim of synchronous machines due to a periodic excitation voltage. It shows that the presence of eddy currents in the rotor magnetic circuit has the double effect of increasing the excitation winding AC-resistance and decreasing its magnetizing AC-inductance. According to that a simple analytical model is presented in here which allows a rapid rough estimation of the excitation winding AC-resistance when little information is available about the machine geometry and its

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12

Faraj, Moneer A., Ahmed N. Abdalla, Fahmi Bin Samsuri, Damhuji Rifai, and Kharudin Ali. "Construct Coil Probe Using GMR Sensor for Eddy Current Testing." MATEC Web of Conferences 225 (2018): 02021. http://dx.doi.org/10.1051/matecconf/201822502021.

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Eddy current testing is a widely applied non-destructive technique in different sections of industries. Nowadays eddy current testing is an accurate, widely used and well-understood inspection technique, particularly in the aircraft and nuclear industries. The main purpose of this paper is to construct an eddy current probe by using transmission coil and using a Giant Magneto resistance (GMR) sensor for detection medium. This probe only use a magnetic field to operational in detection of flaws. A transmission coil is an object made from a material that is magnetized and creates its own persist

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13

Pan, Dong Hua, Jia Xi Liu, Feng Jing Shen, Li Yi Li, and Ming Na Ma. "Analysis and Modeling of Eddy Current Damping for Short-Stroke DC Linear Motor." Applied Mechanics and Materials 416-417 (September 2013): 300–304. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.300.

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Eddy currents induced in a conductor in a changing magnetic field produce a damping force proportional to the heat generated in the conductive material. In this paper, the damping force of short-stroke DC Linear Motor (DCLM) is researched, and then model of damping force is established. In the preliminary work, the analytical expression of magnetic field distribution is obtained by the charge model, so the eddy current inducted in the conductor is calculated. Then the damping force is obtained after the equivalent resistance and inductance of conductors are calculated. The formula of damping f

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14

Khandetskyi, V. S. "Determination of the conductivity of non-metallic powder materials by the eddy current method." Journal of Physics and Electronics 27, no. 1 (2019): 63–70. http://dx.doi.org/10.15421/331911.

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A theoretical analysis of the interaction of the eddy current sensor field with powder particles makes it possible to calculate the particle conductivity using the measured value of the sensor added active resistance. Relative to its own reactance, the value of this resistance is proportional to powder density, frequency of the probing field, electrical conductivity of particles and square of their diameter. Particles of spherical shape and cylindrical shape, the height of which is equal to the diameter of the base, are considered. The analysis allows to explain the experimentally observed dif

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15

Vrublevskiy, N. F., та O. A. Korotkiy. "Оn the structure of the device for measuring residual stresses". Radio industry 28, № 3 (2018): 18–22. http://dx.doi.org/10.21778/2413-9599-2018-28-3-18-22.

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Тhe article deals with a relevant problem – improvement of the accuracy of measurement of residual stresses in the elements of machines and structures with the use of attachable transducers.Analysis of flexible current-vortex transducers designed in the form of a single-layer coil has been performed. To solve the problem, the method of eddy currents is proposed, which can be used to set the calibration value of the magnetic resistance of the air gap between the transducer and the object.This method implementation based on the scheme of the oscillator with a reactive circuit has been demonstrat

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16

Bensaid, Samir, Omar Adib Safer, Didier Trichet, Guillaume Wasselynck, Gérard Berthiau, and Javad Fouladgar. "Eddy Current Non-Destructive Characterization of Carbon Fiber Reinforcement Composites Considering Capacitive Effect." Revue des composites et des matériaux avancés 31, no. 2 (2021): 73–79. http://dx.doi.org/10.18280/rcma.310202.

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This paper presents a modelling procedure to take into account the capacitive effect at high frequencies, in Eddy Current Non-Destructive Characterization (EC-NDC) of Unidirectional Carbon Fiber Reinforcement Composite (UD-CFRC) rods. To simulate the complete EC-NDC systems, first, the multilayer circular air coil is physically modeled by a finite element (FE) axisymmetric eddy current model coupled to equivalent RL circuit. Each layer of the coil is represented by an equivalent resistance (R) in series with the equivalent inductance (L). Secondly, R and L of the coil layers are computed for s

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17

Emrinaldi, Tengku, Salomo Salomo, Yanuar Hamzah, Iwantono Iwantono, and Lazuardi Umar. "EDDY CURRENT SENSOR BERBASIS FLAT COIL FR4 UNTUK MENENTUKAN KETEBALAN PELAT LOGAM NON MAGNETIK AL." Spektra: Jurnal Fisika dan Aplikasinya 2, no. 3 (2017): 211–18. http://dx.doi.org/10.21009/spektra.023.07.

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Abstrak Sensor arus eddy (eddy current) digunakan untuk pengukuran ketebalan logam khususnya logam non magnetik seperti alumunium. Penelitian ini telah mengembangkan sensor eddy current berbahan PCB (printed circuit board) jenis FR4 yang memiliki ketebalan lapisan tembaga 35micron. Prototipe yang dihasilkan mempergunakan koil sensor dengan jumlah gulungan (n) 30 lilitan, diameter (Æ) 30mm, lebar dan jarak antar koil, (dkoil) 0,254mm dan tahanan (Rkoil) sebesar 4,26Ω. Respon sensor ketebalan pelat logam terhadap bahan uji dievaluasi dengan memberikan eksitasi frekuensi tunggal 700Khz, 1MH

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18

Ban-Leong Ooi, Dao-Xian Xu, Pang-Shyan Kooi, and Fu-jiang Lin. "An improved prediction of series resistance in spiral inductor modeling with eddy-current effect." IEEE Transactions on Microwave Theory and Techniques 50, no. 9 (2002): 2202–6. http://dx.doi.org/10.1109/tmtt.2002.802337.

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19

Harpen, M. D. "Eddy current distributions in cylindrical samples: effect on equivalent sample resistance (medical NMR application)." Physics in Medicine and Biology 34, no. 9 (1989): 1229–38. http://dx.doi.org/10.1088/0031-9155/34/9/008.

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20

Paul, Partha, Chetan Ingale, and Bishakh Bhattacharya. "Design of a vibration isolation system using eddy current damper." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 4 (2013): 664–75. http://dx.doi.org/10.1177/0954406213489408.

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This article aims at modeling, analysis and design of a passive vibration isolation system using a magnetic damper with high efficiency and compactness. The experimental set-up was developed for a single degree-of-freedom vibration isolation system, where the damper consists of two elements: an outer stationary conducting tube made up of copper and a moving core made up of an array of three ring-shaped neodymium magnets of Nd–Fe–B alloy separated by four block cylinders made of mild steel that are fixed to a steel rod. The generation of eddy currents in the conductor and its resistance causes

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21

Chen, Xiaolong, Yanlong Cao, Zaiyu Lin, Jiangxin Yang, and Xiaoqi Hu. "Study on extraction of electrical runout in eddy current measurement using finite element method." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 6 (2013): 1077–86. http://dx.doi.org/10.1177/0954406213498341.

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Electrical runout is a bottleneck problem of eddy current sensor, which is caused by the maldistribution/variation of material electromagnetic properties of measurement target. However, extraction methods of electrical runout in eddy current displacement measurement remain ambiguous. Here, a 2D finite element model for the influence analysis of conductivity and permeability of ferromagnetic material on coil impedance of eddy current sensor is reported, which will be beneficial for detecting material properties and guiding manufacturing process. The relationships between the real and imaginary

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22

Malikov, Vladimir, and Alexey Ishkov. "Ultra-miniature eddy-current converter for small defects of deep occurrence search in the area of high-yield-stress steels weld joints." E3S Web of Conferences 281 (2021): 07004. http://dx.doi.org/10.1051/e3sconf/202128107004.

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The presented study describes a diagram of an eddy-current measuring system built on the basis of a subminiature eddy-current converter, intended for the conducting materials’ study. The article describes the results of testing a designed measuring system for defects search in 6XB2S steel samples, connected by a weld joint. The technology for creating such materials permits the significant impact resistance of finished products and provides an optimal combination of hardness and toughness. However, the defects formed in the material near the weld joint become a serious problem in the operation

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23

Ren, Zongqiang, Hongwei Li, and Wentao Yu. "Research on Coil Impedance of Self-Inductive Displacement Sensor Considering Core Eddy Current." Sensors 21, no. 18 (2021): 6292. http://dx.doi.org/10.3390/s21186292.

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The inductive displacement sensor is widely used in active magnetic bearing (AMB) systems to detect rotor displacement in real time, and the performance of the sensor directly affects the performance of AMB. At present, most theoretical studies on the working principle of inductive displacement sensor are based on a traditional mathematical model, ignoring the influence of the core magnetic resistance and core eddy current, which will lead to a certain error between the theoretical analysis of the sensor output characteristics and the actual situation. In this regard, based on the theory of el

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24

Yusa, Noritaka, and Kenzo Miya. "Discussion on the equivalent conductivity and resistance of stress corrosion cracks in eddy current simulations." NDT & E International 42, no. 1 (2009): 9–15. http://dx.doi.org/10.1016/j.ndteint.2008.09.007.

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25

Keilin, V. E., I. A. Kovalev, S. L. Kruglov, et al. "Measurements of the transverse resistance and eddy current losses in a cable-in-conduit conductor." Technical Physics 60, no. 11 (2015): 1697–704. http://dx.doi.org/10.1134/s1063784215110158.

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26

Takahashi, N., H. Shinagawa, D. Miyagi, Y. Doi, and K. Miyata. "Analysis of Eddy Current Losses of Segmented Nd–Fe–B Sintered Magnets Considering Contact Resistance." IEEE Transactions on Magnetics 45, no. 3 (2009): 1234–37. http://dx.doi.org/10.1109/tmag.2009.2012576.

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27

Tsukada, Keiji, Kousuke Miyake, Daichi Harada, Kenji Sakai, and Toshihiko Kiwa. "Magnetic Nondestructive Test for Resistance Spot Welds Using Magnetic Flux Penetration and Eddy Current Methods." Journal of Nondestructive Evaluation 32, no. 3 (2013): 286–93. http://dx.doi.org/10.1007/s10921-013-0181-0.

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28

Yaguchi, Osama, Yoshiyuki Okada, and Toshihiko Sasaki. "Nondestructive Structure Test of Cam-Shaft Using both Eddy Current and X-Rays." Advanced Materials Research 409 (November 2011): 590–94. http://dx.doi.org/10.4028/www.scientific.net/amr.409.590.

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The cam-shaft for the internal-combustion engine needs to be chilled at the foundry stage to rise the cam hardness, but unexpected chilled structures could occur on the sensor plate surface. If chilled structures exist on the sensor plate, a grinding tool may break when grinding sensor plate, or the specified shape may be unable to be produced due to resistance arising from the hyper-hardness of the chilled structures. For this reason, developing an inspection technique and a device for detecting unnecessary chilled structures before grinding the cam-shaft and for determining the rejection and

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29

Drobiec, Łukasz, Radosław Jasiński, and Wojciech Mazur. "Accuracy of Eddy-Current and Radar Methods Used in Reinforcement Detection." Materials 12, no. 7 (2019): 1168. http://dx.doi.org/10.3390/ma12071168.

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This article presents results from non-destructive testing (NDT) that referred to the location and diameter or rebars in beam and slab members. The aim of paper was to demonstrate that the accuracy and deviations of the NDT methods could be higher than the allowable execution or standard deviations. Tests were conducted on autoclaved aerated concrete beam and nine specimens that were specially prepared from lightweight concrete. The most advanced instruments that were available on the market were used to perform tests. They included two electromagnetic scanners and one ground penetrating radar

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30

Ihle, Martin, Steffen Ziesche, Paul Gierth, Andreas Tuor, Jonathan Tigelaar, and Oliver Hirsch. "Low temperature co-fired ceramics technology for active eddy current turbocharger speed sensors." Microelectronics International 35, no. 3 (2018): 164–71. http://dx.doi.org/10.1108/mi-12-2017-0067.

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Purpose The purpose of this paper is to analyze a presentation of eddy current sensing coils for the turbo charger speed measurement, which were manufactured with the low temperature co-fired ceramic (LTCC) technology. The goal is to be able to manufacture small robust coils with complex geometries and improved signal output. Design/methodology/approach A crucial element for its performance is the quality factor of the embedded coil. Thanks to the use of the developed LTCC manufacturing processes, the lateral wounding distance of the printed coils can be reduced to 30 µm, and simultaneously, t

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31

Podoltsev, A. D., I. N. Kucheryavaya, and B. B. Lebedev. "Analysis of effective resistance and eddy-current losses in multiturn winding of high-frequency magnetic components." IEEE Transactions on Magnetics 39, no. 1 (2003): 539–48. http://dx.doi.org/10.1109/tmag.2002.806337.

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32

Shih-Chin Yang and R. D. Lorenz. "Surface permanent magnet synchronous machine position estimation at low speed using eddy-current-reflected asymmetric resistance." IEEE Transactions on Power Electronics 27, no. 5 (2012): 2595–604. http://dx.doi.org/10.1109/tpel.2011.2171507.

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33

Liu, Wei, Bing Liang, Zhenyuan Jia, et al. "High-Accuracy Calibration Based on Linearity Adjustment for Eddy Current Displacement Sensor." Sensors 18, no. 9 (2018): 2842. http://dx.doi.org/10.3390/s18092842.

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High precision position control is essential in the process of parts manufacturing and assembling, where eddy current displacement sensors (ECDSs) are widely used owing to the advantages of non-contact sensing, compact volume, and resistance to harsh conditions. To solve the nonlinear characteristics of the sensors, a high-accuracy calibration method based on linearity adjustment is proposed for ECDSs in this paper, which markedly improves the calibration accuracy and then the measurement accuracy. After matching the displacement value and the output voltage of the sensors, firstly, the sensit

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34

Kim, Bruce C., and Saikat Mondal. "Design of TSV-based Inductors for Internet of Things." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2016, DPC (2016): 002111–30. http://dx.doi.org/10.4071/2016dpc-tha34.

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This paper describes the design of a Through Silicon Via based high density 3D inductors for Internet of Things (IoT) applications. We present some possible challenges for TSV-based inductors in IoT applications. The current trend towards Internet of Things (IOT), System in Package (SiP) and Package-on-Package (PoP) requires meeting the power requirements of heterogeneous technologies while maintaining minimum package size. 3-D chip stacking has emerged as one of the potential solutions due to its high density integration in a 3D power electronics packaging regime. As an integral part of many

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35

Xu, Zhiyuan, Shanwei Fan, and Tiejun Song. "Parameter identification of pulsed eddy current testing equivalent circuit model and its application to defect evaluation." Measurement and Control 54, no. 5-6 (2021): 1113–21. http://dx.doi.org/10.1177/00202940211020341.

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The equivalent circuit model of pulsed eddy current testing (PECT) has simple mathematics but its applications are limited to qualitative analysis such as principle illustration and signal interpretation. In this paper, the parameters of equivalent circuit model are estimated using system identification method and quantitative relationships are found between some of the parameters and the size of the defect. The equivalent circuit equations were solved from the perspective of system analysis to yield the system transfer function. An m-sequence of 10 order was selected to excite the system and

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36

Jia, Jia, Yinao Su, Yue Shen, Long Wang, Lingtan Zhang, and Yan Ling. "Circuit Modeling and Signal Transmission Analysis of Inductive Coupler in Wired Drill Pipe." Mathematical Problems in Engineering 2021 (March 26, 2021): 1–11. http://dx.doi.org/10.1155/2021/5538419.

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The telemetry drill string transmits the measured drilling and formation parameters near the bit to the ground at high speed through the transmission line in the wired drill pipe and the inductive coupler formed by the coil embedded in the drill pipe joint. The voltage transfer function of the inductive coupler seriously affects the signal transmission characteristics of the telemetry drill string. Present research methods cannot accurately and quantitatively describe the influence of the electromagnetic parameters of the inductive coupler on its voltage transfer function. This paper quantitat

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37

Ripka, Pavel, Josef Blažek, Mehran Mirzaei, Pavol Lipovský, Miroslav Šmelko, and Katarína Draganová. "Inductive Position and Speed Sensors." Sensors 20, no. 1 (2019): 65. http://dx.doi.org/10.3390/s20010065.

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Magnetic position and speed sensors are rugged and durable. While DC magnetic sensors use permanent magnets as a field source and usually have only mm or cm range, inductive sensors use electromagnetic induction and they may work up to a distance of 20 m. Eddy current inductive sensors equipped with magnetoresistive sensors instead of inductive coils can operate at low frequencies, allowing detection through a conductive wall. In this paper, we make an overview of existing systems and we present new results in eddy current velocity and position measurements. We also present several types of in

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38

Makarov, A. V., E. S. Gorkunov та L. Kh Kogan. "Application of the eddy-current method for estimating the wear resistance of hydrogen-alloyed β-titanium alloy BT35". Russian Journal of Nondestructive Testing 43, № 1 (2007): 21–26. http://dx.doi.org/10.1134/s1061830907010032.

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39

Makarov, A. V., E. S. Gorkunov, I. Yu Malygina, L. Kh Kogan, R. A. Savrai, and A. L. Osintseva. "Eddy-current testing of the hardness, wear resistance, and thickness of coatings prepared by gas-powder laser cladding." Russian Journal of Nondestructive Testing 45, no. 11 (2009): 797–805. http://dx.doi.org/10.1134/s1061830909110060.

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40

König, Niklas, and Matthias Nienhaus. "A Solution to Ambiguities in Position Estimation for Solenoid Actuators by Exploiting Eddy Current Variations." Sensors 20, no. 12 (2020): 3441. http://dx.doi.org/10.3390/s20123441.

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Position estimation techniques for solenoid actuators are successfully used in a wide field of applications requiring monitoring functionality without the need for additional sensors. Most techniques, which also include standstill condition, are based on the identification of the differential inductance, a parameter that exhibits high sensitivity towards position variations. The differential inductance of some actuators shows a non-monotonic dependency over the position. This leads to ambiguities in position estimation. Nevertheless, a unique position estimation in standstill condition without

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41

Yu, Si Rong, Qiang Yao, and Hong Chao Chu. "Preparation of MAO Ceramic Coating on Ti-6Al-4V Alloy Surface." Materials Science Forum 789 (April 2014): 443–48. http://dx.doi.org/10.4028/www.scientific.net/msf.789.443.

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Micro-arc oxidation (MAO) technology was applied for preparing ceramic coating on Ti alloy. The ceramic coating was characterized using X-ray diffraction, surface roughness meter, eddy current thickness meter, and confocal microscopy. The effects of the current density, the duty cycle and the oxidation time on the thickness and roughness of the ceramic coating were examined. The polarization curves of Ti alloy surface were measured before and after MAO treatment using electrochemical workstation. The results show that the phases of the ceramic coating mainly consist of Ti element, rutile and a

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42

Olukotun, Babatunde, Julius Partridge, and Richard Bucknall. "Finite Element Modeling and Analysis of High Power, Low-loss Flux-Pipe Resonant Coils for Static Bidirectional Wireless Power Transfer." Energies 12, no. 18 (2019): 3534. http://dx.doi.org/10.3390/en12183534.

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This paper presents the optimal modeling and finite element analysis of strong-coupled, high-power and low-loss flux-pipe resonant coils for bidirectional wireless power transfer (WPT), applicable to electric vehicles (EVs) using series-series compensation topology. The initial design involves the modeling of strong-coupled flux-pipe coils with a fixed number of wire-turns. The ohmic and core loss reduction for the optimized coil model was implemented by creating two separate coils that are electrically parallel but magnetically coupled in order to achieve maximum flux linkage between the seco

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Lindner, Martina, Julia Heider, Matthias Reinelt, and Horst-Christian Langowski. "Hygroexpansion and Surface Roughness Cause Defects and Increase the Electrical Resistivity of Physical Vapor Deposited Aluminum Coatings on Paper." Coatings 9, no. 1 (2019): 33. http://dx.doi.org/10.3390/coatings9010033.

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Aluminum coatings, which are applied by physical vapor deposition (PVD), have to be virtually defect-free in barrier applications for the packaging industry. When aluminum is applied to paper, hygroexpansion and substrate roughness can impair the aluminum coating. Neither effect is easy to detect by microscopy, but both can manifest as an increase in electrical resistance. Here, we quantified the effect of substrate paper hygroexpansion and surface roughness on the effective resistivity ρEFF of aluminum coatings. The sheet resistance of aluminum coated onto four different rough paper surfaces

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Luong, Van Su, Minhhuy Le, Khoa Dang Nguyen, Dang-Khanh Le, and Jinyi Lee. "Electromagnetic Testing of Moisture Separation Reheater Tube based on Multivariate Singular Spectral Analysis." Applied Sciences 10, no. 11 (2020): 3954. http://dx.doi.org/10.3390/app10113954.

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Moisture separator reheater (MSR) tubing systems are an important part of a pressurized-water power plant to increase the efficiency of the heat transfer rate. The MSR tubes are finned tubes which are made of ferritic stainless steel (SS439) with a high strength and corrosion resistance characteristics. However, corrosion can appear along with the fins after a long period of operation of the MSR tubes that requires nondestructive testing (NDT) of the MSR tubes’ periodically. Electromagnetic testing (ET) is an efficient NDT method for the inspection of far-side corrosion in the MSR tubes. Howev

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Kostiukov, I. A. "RESEARCH ON ADDED INDUCTANCE AND RESISTANCE DURING SPIRAL FERROMAGNETIC WIRE SCANNING WITH MAGNETIC FIELD OF A PARAMETRIC EDDY-CURRENT SENSOR." Electrical Engineering & Electromechanics, no. 5 (October 14, 2014): 25–29. http://dx.doi.org/10.20998/2074-272x.2014.5.04.

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Yamazaki, K., M. Shina, M. Miwa, and J. Hagiwara. "Investigation of Eddy Current Loss in Divided Nd–Fe–B Sintered Magnets for Synchronous Motors Due to Insulation Resistance and Frequency." IEEE Transactions on Magnetics 44, no. 11 (2008): 4269–72. http://dx.doi.org/10.1109/tmag.2008.2001316.

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Hu, Zong Chun, Fa Qin Xie, and Xiang Qing Wu. "Effects of Voltage on the Characteristics and Corrosion Resistance of Microarc Oxidation Coatings on Ti6Al4V Alloy." Advanced Materials Research 97-101 (March 2010): 1336–39. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.1336.

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Ceramic coatings were prepared on Ti6Al4V in aluminate-based electrolyte by microarc oxidation at various voltages using potentiostatic regime. The phase composition, microstructure and morphology of the coatings were characterized by eddy thickness gauge, XRD and SEM respectively. The corrosion resistance of the coatings was investigated by polarization curve and electrochemical impedance spectroscopy (EIS) in 3.5% NaCl aqueous solution. The results show that all the coatings are mainly composed of Al2TiO5. When the voltage increases from 360V to 510V, the coating thickness grows significantl

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He, Yi, Shao Jie Du, and Guang Wei Cheng. "Modeling and Simulation of Disc Brake Resistance Load in Low Speed Condition." Advanced Materials Research 548 (July 2012): 691–95. http://dx.doi.org/10.4028/www.scientific.net/amr.548.691.

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In this paper, the load simulation of tracked vehicle disc brake in low speed is discussed. The simulation of the resistance load and the control of the disc brake is researched when the resistance load loading on the test bench The simulation results show that, by controlling the input voltage of the disc brake electrohydraulic control portion, the disc brake braking torque can be controlled, the driving resistance simulation of crawler vehicle is realized. At the same time, the simulation has high accuracy, fast response speed, and has better dynamic characteristic. When the tracked vehicle

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Makarov, A. V., E. S. Gorkunov, Yu M. Kolobylin, et al. "Eddy-current testing of the wear resistance of laser-hardened carburized chromonickel steel and the quality of laser hardening of drill bits." Russian Journal of Nondestructive Testing 45, no. 10 (2009): 698–710. http://dx.doi.org/10.1134/s1061830909100052.

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Li, Yitai, Weiou Qin, Shuyuan Yu, et al. "Effect of Aging Treatment on the Corrosion Resistance Properties of 7N01 Extrusion Aluminum Alloy." Materials 14, no. 13 (2021): 3615. http://dx.doi.org/10.3390/ma14133615.

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The influences of non-isothermal aging (the temperature range is 150–180 °C, and the heating rate is 5 and 20 °C/h alternately), single-peak aging (aging at 120 °C for 24 h, then water quenched was followed at room temperature), and two-stage aging (aging at 105 °C for 8 h first, then increasing aging temperature to 135 °C and keeping for 12 h, followed by water quenching at room temperature) on the corrosion resistance and microstructure of the 7N01 aluminum alloy under 3.5 wt.% NaCl were investigated using electric polarization curve test and exfoliation corrosion. After aging, the hardness

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