Temperature Drift Compensation of Eddy Current Sensor under High Temperature Environment

被引：5

作者：

He, Ping ^{[1
]}

Ma, YunKai ^{[1
]}

Chen, Hui ^{[2
]}

机构：

[1] HIT, Harbin, Heilongjiang, Peoples R China

[2] SACTI, Shanghai 201109, Peoples R China

来源：

2018 4TH INTERNATIONAL CONFERENCE ON ENERGY MATERIALS AND ENVIRONMENT ENGINEERING (ICEMEE 2018) | 2018年 / 38卷

关键词：

D O I：

10.1051/e3sconf/20183804005

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Eddy current sensor is an sensor based on eddy current effect. In practical engineering applications, the ambient temperature of eddy current sensor may be up to 135 degrees C. The temperature drift of eddy current sensor magnifies the error of displacement detection. In this paper, the main factors that cause temperature drift are analyzed in detail, and the results show that the compensation based on single parameter can not meet the demand of high-precision measurement. For this reason, this paper proposes an external compensation method which applies mathematical fitting to realize compensation for temperature drift. The experimental results show that the measurement accuracy of the external compensation method reaches 0.25% in the working temperature range, which greatly improves the measurement accuracy of eddy current sensor under high temperature.

引用

页数：4