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Proceedings Paper

Measuring thread system using a laser fiber sensor
Author(s): Dong Lu; Zhihang Lu; Dawei Feng
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Paper Abstract

This paper introduces a non-contact measuring system —measuring thread system using laser fiber sensor. It can solve some problems of the traditional measuring methods, such as complicated technical process, long re-testing periods, waste workpiece. A low noise amplifier used to match the photo-electronic detecting element due to the weak signal is applied in this system. Furthermore, it presents a new measuring system with phase-sensitive detecting circuit controlled by computer program, an interface circuit of microcomputer, laser fiber sensor system and digital processing system, the system based on the above elements has high resolution and sensitivity, the measuring errors ?20 ?m.

Paper Details

Date Published: 9 September 2002
PDF: 6 pages
Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); doi: 10.1117/12.481997
Show Author Affiliations
Dong Lu, Changchun Univ. of Science and Technology (China)
Zhihang Lu, Shanghai Ship and Shipping Research Institute (China)
Dawei Feng, Changchun Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 4920:
Advanced Sensor Systems and Applications
Yun-Jiang Rao; Julian D. C. Jones; Hiroshi Naruse; Robert I. Chen, Editor(s)

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