A PC104 architecture-based high-accuracy laser diode alignment system

Qingshan Chen; Naiguang Lv; Zhikang Pan; Yong Lv

doi:10.1117/12.717225

6 November 2006 A PC104 architecture-based high-accuracy laser diode alignment system

Qingshan Chen, Naiguang Lv, Zhikang Pan, Yong Lv

Proceedings Volume 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence; 63573E (2006) https://doi.org/10.1117/12.717225
Event: Sixth International Symposium on Instrumentation and Control Technology, 2006, Beijing, China

Abstract

Reports a laser diode alignment system for monitoring dam, building, bridge, etc. It comprises a light source and a receiving unit. The former is mainly composed of a laser diode for emitting light in red spectrum band at wavelength of 680nm, a single mode fiber for spot transforming and mode selecting, and a reverse telescope for collimating the emission light beam. The whole light source is mounted on a 4-dimension adjustable table fixed on a tripod. The latter is an embedded computer based on PC104 architecture. It contains a mainboard, an image grabber, a LCD display and a CCD. Central position of the light spot is calculated according to barycenter method. It is proved by experiments in lab that within a span of 8m the direction stability of the alignment system is up to 1X10-6 magnitude order.

Citation Download Citation

Qingshan Chen, Naiguang Lv, Zhikang Pan, and Yong Lv "A PC104 architecture-based high-accuracy laser diode alignment system", Proc. SPIE 6357, Sixth International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence, 63573E (6 November 2006); https://doi.org/10.1117/12.717225

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