A novel photonic Doppler velocimetry for transverse velocity measurement

Chen, Guanghua; Wang, Detian; Li, Jun; Meng, Jian; Liu, Shouxian; Qi, Yang

doi:10.1063/1.4776186

Cited by 11 publications

(3 citation statements)

References 13 publications

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“…Ever since the pioneering work regarding self-biased ME effects-defined as nonzero remnant ME voltage at zero bias field-in multiferroic heterostructures was reported by Mandal et al [34], the self-biased phenomenon in ME composites has increasingly become the focus of investigations [35][36][37]. Taking advantage of magnetic coupling between two (or more) different epoxy-bonded magnetostrictive induced by the differences in their magnetic susceptibilities and coercivities, the realization of self-biased ME couplings with similar methodology in various multiferroic materials has been reported by a number of research groups [38][39][40][41][42]. In 2013, the realization of self-biased ME effects in single-phase magnetostrictive materials of annealed Metglas (at the annealing temperature of 600 °C) and Pb(Zr,Ti)O 3 composite was documented by Li et al [43].…”

Section: Ampere S Circuital Lawmentioning

confidence: 91%

Packaged current-sensing device with self-biased magnetoelectric laminate for low-frequency weak-current detection

Zhang

Wen

et al. 2014

Smart Mater. Struct.

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A packaged current sensor consisting of a SmFe2/PZT/SmFe2 self-biased magnetoelectric (ME) laminate and a Fe73.5Cu1Nb3Si13.5B9 nanocrystalline flux concentrator for weak-current detection at the power-line frequency is fabricated and characterized. The giant magnetostrictive material of the SmFe2 plate with its large anisotropic constant provides a huge internal anisotropic field to bias the ME transducer in a closed magnetic loop. Consequently, the additional magnetomotive force induced by the internal field and the corresponding increased effective permeability contribute to an improvement in sensitivity. Experimental results demonstrate that the presented sensor has a higher sensitivity of 152 mV A−1 at 50 Hz with a slight nonlinearity of ∼0.01% FS and matches well with the predicted value. This current-sensing device exhibits approximately 2.3 times higher sensitivity than does conventional ME composite with PZT and Terfenol-D plates serving as the key sensitive component. In addition, the packaged sensor is evaluated for a long period of 72 h to determine stability over time, and the results are analyzed by means of a mathematical statistics method; favorable stability with an uncertainty of 0.5 μV is obtained in continuous 1 h testing. These results represent a significant advancement in the development of promising applications of tri-layer self-biased ME laminate for monitoring power-line electric cords.

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Section: Ampere S Circuital Lawmentioning

confidence: 91%

Packaged current-sensing device with self-biased magnetoelectric laminate for low-frequency weak-current detection

Zhang

Wen

et al. 2014

Smart Mater. Struct.

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“…As shown in Eq. ( 6), velocity demodulation is according to the classical velocity demodulation equation [19].…”

Section: Multiplexed Photon Doppler Velocimetry Principlementioning

confidence: 99%

Research on three-dimensional velocimetry technology based on multiplexed photon Doppler

Sun,

Wu,

Wang

et al. 2024

Speckle 2023: VIII International Conference on Speckle Metrology

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Based on the photon Doppler velocimetry technology, this paper studies high-speed targets' three-dimensional (3D) velocimetry technology, reproduces the movement trajectory of high-speed targets through 3D coordinates and broadens the photon Doppler velocimetry technology application scope. First, design the multiplexed photonic Doppler velocimetry optical path structure and analyze the multiplexed photonic Doppler velocimetry principle. Then, the target 3D velocity extraction method is studied, including the fiber optic probe's spatial arrangement and the calculated method of target motion trajectory. Finally, the detection sensitivity of velocity in the direction of the 3D coordinate axis is analyzed. In order to verify the reliability of 3D velocimetry technology, the paper is described in two parts: software simulation and experiment. MATLAB is used to simulate the principle of 3D velocimetry technology. The simulation results show that 3D velocimetry technology can be realized by processing Doppler frequency shift voltage signals. In the experimental part, the high-speed target is detected through fixed-angle optical fiber probes, and four sets of Doppler frequency shift voltage signals are collected. After data processing, the target's 3D velocity is extracted, and the target's motion trajectory is reproduced. Therefore, this paper provides an idea for reproducing the target's motion trajectory by obtaining the high-speed target's 3D velocity.

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“…以往测量材料高压强度的加载手段多为冲击加载, 2008年Asay等人 [12,13] 将冲击实验中的双屈服面方法应用到等熵压缩实验中, 开辟了研究等熵压缩下材料强度的新途径. 2010年, Alexander等人 [14] 我们利用流体物理研究所磁驱动加载装置CQ-4 [15,16] , 设计了用于磁压剪实验的脉冲强磁场发生器 [17,18] , 发展了低速横向测速技术 [19] , 在此基础上, 开展了磁驱…”

Section: 自20世纪60年代以来国内外学者提出了多种方unclassified

Direct measurement of material dynamic strength under high pressure using magnetically driven pressure-shear loading

Bin¹,

Xuemiao²,

Wang³

et al. 2016

Sci. Sin.-Phys. Mech. Astron.

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Strength criterion of composite solid propellants under dynamic loading Defence Technology 14, 457 (2018); Feasibility analysis of high excess pressure cockpit using material substitution based on strain energy SCIENCE CHINA Technological Sciences 57, 598 (2014); Characterization of magnetically impelled arc butt welded T11 tubes for high pressure applications Defence Technology 11, 244 (2015); Global frequency distributions of pulsations driven by sharp decrease of solar wind dynamic pressure

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A novel photonic Doppler velocimetry for transverse velocity measurement

Cited by 11 publications

References 13 publications

Packaged current-sensing device with self-biased magnetoelectric laminate for low-frequency weak-current detection

Packaged current-sensing device with self-biased magnetoelectric laminate for low-frequency weak-current detection

Research on three-dimensional velocimetry technology based on multiplexed photon Doppler

Direct measurement of material dynamic strength under high pressure using magnetically driven pressure-shear loading

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