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Proceedings Paper

A voice coil motor based measuring force control system for tactile scanning profiler
Author(s): Shengdong Feng; Xiaojun Liu; Liangzhou Chen; Liping Zhou; Wenlong Lu
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Paper Abstract

In tactile scanning profiler, the measuring force would change in a wide range when it was used for profile measurement in a large range, which could possibly destroy the measured surface. To solve the problem, measuring force control system for tactile scanning profiler was needed. In the paper, a voice coil motor-based measuring force control system for tactile scanning profiler was designed. In the design, a low stiffness coefficient spring was used to provide contact force, while a voice coil motor (VCM) to balance the spring force so that the contact force could be kept for constant measuring force. A VCM was designed specially, and for active measuring force control, a precision current source circuit under the control of a DSP unit was designed to drive the VCM. The performance of voice coil motor based measuring force control system had been tested, and its good characteristics were verified.

Paper Details

Date Published: 6 March 2015
PDF: 6 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94463B (6 March 2015); doi: 10.1117/12.2181350
Show Author Affiliations
Shengdong Feng, Huazhong Univ. of Science and Technology (China)
Xiaojun Liu, Huazhong Univ. of Science and Technology (China)
Liangzhou Chen, Huazhong Univ. of Science and Technology (China)
Liping Zhou, Huazhong Univ. of Science and Technology (China)
Wenlong Lu, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

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