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Proceedings Paper

Operational amplifier-based micro eddy current sensor and its application in abrasive machining (honing)
Author(s): Fengqiang Gu; Xiaoyou Ye; Hongtang Gao; Heyan Wang; Jing Xie
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Paper Abstract

An operational amplifier-based micro eddy current sensor circuit is developed for improvement of sensitivity, reduction of power consumption and application in small mounting space. An eddy current sensor is designed on the optimized parameters in this circuit. Meanwhile, an eddy current sensor static calibration system is built by comparing to the measurement unit of Switzerland TESA Inductance Sensor TT80 of high resolution. Simulation and experimental results show that the eddy current sensor has a high sensitivity, low power consumption and is capable of measuring a limited space. Also, the eddy current sensors are mounted in the honing head, and the feasibility of in-process inspection of parts being honed on the inner diameter have been verified in the Abrasive Machining (Honing).

Paper Details

Date Published: 28 December 2010
PDF: 10 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75441N (28 December 2010); doi: 10.1117/12.885421
Show Author Affiliations
Fengqiang Gu, National Institute of Metrology (China)
Xiaoyou Ye, National Institute of Metrology (China)
Hongtang Gao, National Institute of Metrology (China)
Heyan Wang, National Institute of Metrology (China)
Jing Xie, National Institute of Metrology (China)
China Jiliang Univ. (China)

Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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