Accurate Distance Measurement Using An Eddy Current Sensor Based On An Analytical Model

摘要：

This paper presents a novel method to measure the distance of a metallic target using an eddy current sensor based on an analytical solution. It has been discovered that a feature in multi-frequency eddy current (MEC) testing, i.e. the imaginary part of the inductance value at the peak frequency (the frequency when the imaginary part of the inductance reaches peak) is linked to the distance of the sample. In this paper, we show mathematically that as the lift-off increases, the inductance value decreases. Experimental results suggest that the accuracy of distance measurements is within 2％.

关键词： Distance Measurement Eddy Current Sensor Analytical Solution New Feature Multi-Frequency

作者: Gu Jun Yin Wuliang

作者单位: School of Mechanical & Electronic Engineering Soochow University Suzhou, China School of Electrical Engineering & Automation Tianjin University Tianjin, China

会议类型: 国际会议

会议名称: 2010 International Conference on Intelligent Computation Technology and Automation(2010 智能计算技术与自动化国际会议 ICICTA 2010)

会议地点: 长沙

会议语种:英文

页码: 397-399

在线出版日期: 2010-05-11（万方平台首次上网日期，不代表论文的发表时间）