Measuring thread system using a laser fiber sensor

Dong Lu; Zhihang Lu; Dawei Feng

doi:10.1117/12.481997

9 September 2002 Measuring thread system using a laser fiber sensor

Dong Lu, Zhihang Lu, Dawei Feng

Proceedings Volume 4920, Advanced Sensor Systems and Applications; (2002) https://doi.org/10.1117/12.481997
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Dong Lu, Zhihang Lu, and Dawei Feng "Measuring thread system using a laser fiber sensor", Proc. SPIE 4920, Advanced Sensor Systems and Applications, (9 September 2002); https://doi.org/10.1117/12.481997

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