磁致伸缩液位传感器双检测线圈温度补偿与噪声抑制

孙英; 郑岩; 翁玲; 刘非

doi:10.3788/OPE.20192701.0156

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磁致伸缩液位传感器双检测线圈温度补偿与噪声抑制

微纳技术与精密机械 | 更新时间：2020-08-13

- 磁致伸缩液位传感器双检测线圈温度补偿与噪声抑制
- Temperature compensation and noise suppression for magnetostrictive liquid level sensor using double detection coils
- 光学精密工程 2019年27卷第1期页码：156-163
- 作者机构：
  
  1.河北工业大学省部共建电工装备可靠性与智能化国家重点实验室，天津 300130
  2.河北工业大学河北省电磁场与电器可靠性重点实验室，天津 300130
- 作者简介：
  
  [ "孙英(1970-)，女，河北唐山人，博士，副教授，研究生导师，1994年、2001年、2008年于河北工业大学分别获得学士、硕士、博士学位，主要从事磁器件设计、建模及控制等研究。E-mail：sunying@hebut.edu.cn" ]
  [ "郑岩(1991-)，男，河北保定人，硕士研究生，2014年于河北工业大学获得学士学位，主要从事磁材料与器件等研究。E-mail：1522440119@qq.com" ]
- 基金信息：
  
  国家自然科学基金(51777053);河北省自然科学基金重点(E2017202035);河北省科技支撑计划(16211709)
- DOI：10.3788/OPE.20192701.0156
  中图分类号： TP212.1
- 收稿日期：2018-04-20，
  
  录用日期：2018-6-16，
  
  纸质出版日期：2019-01-15
- 稿件说明：
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孙英, 郑岩, 翁玲, 等. 磁致伸缩液位传感器双检测线圈温度补偿与噪声抑制[J]. 光学精密工程, 2019,27(1):156-163.

Ying SUN, Yan ZHENG, Ling WENG, et al. Temperature compensation and noise suppression for magnetostrictive liquid level sensor using double detection coils[J]. Optics and precision engineering, 2019, 27(1): 156-163.
孙英, 郑岩, 翁玲, 等. 磁致伸缩液位传感器双检测线圈温度补偿与噪声抑制[J]. 光学精密工程, 2019,27(1):156-163. DOI： 10.3788/OPE.20192701.0156.

Ying SUN, Yan ZHENG, Ling WENG, et al. Temperature compensation and noise suppression for magnetostrictive liquid level sensor using double detection coils[J]. Optics and precision engineering, 2019, 27(1): 156-163. DOI： 10.3788/OPE.20192701.0156.

摘要

为了校正扭转波速度、补偿温度、抑制脉冲电流噪声以及提高输出信号的信噪比，设计了一种双检测线圈结构应用于磁致伸缩液位传感器。推导了扭转波速度与温度的数学模型，得到了扭转波速度随温度的变化趋势；分析了单检测线圈结构存在温度影响测量结果与脉冲电流幅值大等问题。通过理论分析，最终的实验结果表明，与单检测线圈结构相比，双检测线圈结构能够快速计算扭转波速度，补偿温度对测量结果的影响，将脉冲电流噪声信号幅值降低至原来的1/27，测量误差由原来的0.18 mm降低至0.02 mm。双检测线圈结构为磁致伸缩液位传感器优化设计提供了理论指导。

Abstract

To correct the torsional wave velocity

compensate for the effect of temperature

suppress the pulse current noise

and improve the signal-to-noise ratio of the output signal

a double detection coil structure was designed for a magnetostrictive liquid level sensor. A mathematical model of the torsional wave velocity and temperature was derived

and the relationship between them obtained. The temperature affected the measurement results and the amplitude of pulse current was seen to be larger; these issues of single coil structures were analyzed. The theoretical analysis and experimental results show that

compared with the single detection coil structure

the double detection coil structure leads to faster calculations of the torsional wave velocity and compensates for the effect of temperature on the measurement results. The amplitude of the pulse current noise signal is reduced to the original 1/27

and the measurement error is reduced from the original 0.18 to 0.02 mm. The double detection coil structure provides theoretical guidance for the optimal design of magnetostrictive liquid level sensors.

关键词

Keywords

references

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