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浙江大学学报(工学版)
浙江大学学报(工学版)
电气工程     
基于温漂补偿的高温电涡流位移传感器
吕云腾, 祝长生
浙江大学 电气工程学院,浙江 杭州 310000
High temperature eddy current displacement sensor based on temperature drift compensation
LV Yun-teng, ZHU Chang-sheng
College of Electrical Engineering, Zhejiang University, Hangzhou 310000, China
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摘要：

介绍能够工作于20～500 ℃高温环境下的电涡流位移传感器.通过对传感器探头材料的选择与结构的改进,使传感器探头能够适应环境温度的剧烈变化；利用恒频调幅电路与峰值检测电路,完成位移信号至电压信号的基本转换；通过在传感器输出级加入温度补偿电路,分别针对灵敏度与电压基值进行补偿,实现了对温度影响的有效抑制.在设计的实验硬件系统中对传感器的输出特性进行测量,实验结果验证了该电涡流位移传感器在20～500 ℃的温度环境内具有良好的灵敏度与线性度,并且具有有效的温漂抑制特性.
Abstract:

A novel high-temperature eddy current displacement sensor operating from 20 ℃ to 500 ℃ was introduced. The application of new materials and structure improvement of the sensor probe promised the adaptation of sensor probe to severe temperature variation. The convention of detected displacement to electric signal was completed by frequency modulation circuit and peak detection circuit. The temperature drift, consisting of output sensitivity and bias voltage, was eliminated by a temperature-compensation circuit added in the output stage of the sensor. Experimental results verified that the designed high-temperature eddy current displacement sensor had good output sensitivity and linearity within temperature variation from 20 ℃ to 500 ℃, with effective temperature drift eliminating properties.
出版日期: 2015-04-01
:  TP 212  
基金资助:

国家自然科学基金资助项目（51477155,11172261）；浙江省自然科学基金资助项目（LZ13E070001）；浙江省科技厅公益技术应用研究资助项目(2011C21021)；先进航空发动机协同创新中心资助项目
通讯作者: 祝长生,男,教授,博导     E-mail: cszhu@hotmail.com
作者简介: 吕云腾（1988—）,男,硕士生,从事机电一体化、高温电涡流传感器技术的研究. E-mail: yunteng_lv@163.com
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引用本文:

吕云腾, 祝长生. 基于温漂补偿的高温电涡流位移传感器[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2015.04.020.

LV Yun-teng, ZHU Chang-sheng. High temperature eddy current displacement sensor based on temperature drift compensation. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2015.04.020.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2015.04.020    或    http://www.zjujournals.com/eng/CN/Y2015/V49/I4/749

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