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Proceedings Paper

Effect analysis of nonuniformity on four-quadrant detector and compensation correction
Author(s): Zijun Gao; Lili Dong; Wenhai Xu
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Paper Abstract

The four-quadrant detector is mainly used for high-precision position measurement and related fields, and the requirement of accuracy keeps increasing. The effection of photoresponse nonuniformity on measurement accuracy of four-quadrant detector is analyzed theoretically in this paper. The correction method is proposed through calculation, simulation and analysis. Finally, the experimental platform is built to verify. The results of experiments demonstrate that after compensated correction, the nonuniformity of detector has been 46.17% compensated, the nonlinear deviation has been decreased by 44.1%, the measurement accuracy of spot displacement has been improved by 1.33 times.

Paper Details

Date Published: 19 September 2013
PDF: 10 pages
Proc. SPIE 8905, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications, 890530 (19 September 2013); doi: 10.1117/12.2037858
Show Author Affiliations
Zijun Gao, Dalian Maritime Univ. (China)
Lili Dong, Dalian Maritime Univ. (China)
Wenhai Xu, Dalian Maritime Univ. (China)


Published in SPIE Proceedings Vol. 8905:
International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications
Farzin Amzajerdian; Astrid Aksnes; Weibiao Chen; Chunqing Gao; Yongchao Zheng; Cheng Wang, Editor(s)

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