Analysis of detection signal for magnetostrictive displacement sensor

WANG Bo-wen; ZHANG Lu-yu; WANG Peng; LI Heng; SHI Rui-xue; SUN Ying; WENG Ling

doi:10.3788/OPE.20162402.0358

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Analysis of detection signal for magnetostrictive displacement sensor

更新时间：2020-08-13

- Analysis of detection signal for magnetostrictive displacement sensor
- Optics and Precision Engineering Vol. 24, Issue 2, Pages: 358-364(2016)
- 作者机构：
  
  河北工业大学电磁场与电器可靠性省部共建重点实验室天津,300130
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20162402.0358
  CLC： TP212.12
- Received：10 September 2015，
  
  Revised：25 October 2015，
  
  Published：25 February 2016
- 稿件说明：
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王博文, 张露予, 王鹏等. 磁致伸缩位移传感器检测信号分析[J]. 光学精密工程, 2016,24(2): 358-364

WANG Bo-wen, ZHANG Lu-yu, WANG Peng etc. Analysis of detection signal for magnetostrictive displacement sensor[J]. Editorial Office of Optics and Precision Engineering, 2016,24(2): 358-364
王博文, 张露予, 王鹏等. 磁致伸缩位移传感器检测信号分析[J]. 光学精密工程, 2016,24(2): 358-364 DOI： 10.3788/OPE.20162402.0358.

WANG Bo-wen, ZHANG Lu-yu, WANG Peng etc. Analysis of detection signal for magnetostrictive displacement sensor[J]. Editorial Office of Optics and Precision Engineering, 2016,24(2): 358-364 DOI： 10.3788/OPE.20162402.0358.

摘要

实验研究了磁致伸缩位移传感器的探测电压信号

以便提高磁致伸缩位移传感器的检测精度。分析和验证了波导丝材料、驱动脉冲电流、检测线圈等参数对磁致伸缩位移传感器输出电压的影响规律。对检测线圈进行了优化设计

基于实验数据确定了传感器的各项参数值。实验发现磁致伸缩系数大、魏德曼效应显著的Fe-Ga材料作为波导丝

可明显提高电-磁-机械能的转换效率

获得较大的检测电压信号。研制了新型Fe-Ga波导丝磁致伸缩位移传感器样机

并与Fe-Ni波导丝传感器进行了性能对比。结果表明

与Fe-Ni波导丝相比

Fe-Ga波导丝磁致伸缩位移传感器的检测信号明显增强

信噪比显著提高

其检测电压信号幅值比Fe-Ni波导丝检测电压信号幅值提高了40 mV

相应的传感器精度提高了2倍。

Abstract

The detecting voltage signal of a magnetostrictive displacement sensor was experimentally studied to improve its detection accuracy. The effects of waveguide wire materials

driving pulse currents

and detecting coil parameters on the detecting voltage signal were analyzed and confirmed. The detecting coil was designed optimally and the parameters for the magnetostrictive displacement sensor were determined. The research shows since the Fe-Ga waveguide has a larger magnetostrictive coefficient and remarkable Weidmann effect

it improves the electric-magnetic-mechanical conversion efficency and obtains more detecting voltage signals. Based on the experimental results

a new type of magnetostrictive displacement sensor with the Fe-Ga waveguide wire was fabricated and its performance was compared with that of a magnetostrictive displacement sensor with the Fe-Ni waveguide wire. The research shows that the detecting signal for the magnetostrictive displacement sensor with the Fe-Ga waveguide wire is obviously enhanced and the signal-to-noise ratio is improved significantly as compared with that with the Fe-Ni waveguide wire. Moreover

the detecting voltage signal amplitude for the magnetostrictive displacement sensor with the Fe-Ga wire increases 40 mV and its detection precision may be 2 times that of the sensor with the Fe-Ni wire.

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references

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