GAO Song-wei, LIU Yun-peng, YANG Li-jian. Application of exponential computing in non-linear compensation of eddy current sensor[J]. 2009, 28(6): 114-116+120.
GAO Song-wei, LIU Yun-peng, YANG Li-jian. Application of exponential computing in non-linear compensation of eddy current sensor[J]. 2009, 28(6): 114-116+120. DOI: 10.13873/j.1000-97872009.06.038.
指数运算在电涡流传感器非线性补偿中的应用
摘要
为扩大电涡流传感器的测量范围
设计了基于恒定频率载波调幅法测量电路
应用指数运算电路作为非线性补偿环节。利用Matlab仿真软件辅助设计了直径60mm电涡流传感器探头
结合测量电路进行实验。实验结果表明:该电涡流传感器能够检测的位移可达90 mm
验证了该系统工作的稳定性
证明设计达到了预期效果。
Abstract
To expand the scope of measurement
the testing circuit is based on the constant frequency carrier AM measurement circuits
and exponential computing circuit is used as non-linearity compensation.Using simulation software Matlab
the eddy current sensor probe of diameter 60 mm is designed
and experiment is done with the measurement circuit.Experimental results show that the eddy current sensor can detect the distance of 90 mm
it’s validated by experiment that the sensor works steadily
Eddy-Current Nondestructive Inspection with Thin Spiral Coils: Long Cracks in Steel [J] . R. J. Ditchburn,S. K. Burke,M. Posada. Journal of Nondestructive Evaluation . 2003 (2)
Eddy-current testing of mechanical characteristics of pressure vessel metals at high frequencies [J] . Z. A. Bernyk,V. M. Uchanin,I. P. Bilokur. Materials Science . 1995 (2)