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Proceedings Paper

Measurement capability improvement by enlarging beam divergence of moving police laser gun
Author(s): Qian-jin Tang; Jie Shao; Zhi-zong Wu; Jian-yong Chen
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Paper Abstract

Two laser guns with 2.95 mrad and 4.80 mrad beam divergence are designed to verify the relation of the measurement time, measurement distance, speed range, and beam divergence. The on-the-road test result shows that 4.80 mrad beam divergence is better than 2.95 mrad when measuring vehicle speed within 60 to 150 km/h at a distance 80~150 m, which indicates that appropriately enlarging the beam divergence can extend active area and increase measurement speed range.

Paper Details

Date Published: 31 August 2009
PDF: 6 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73823K (31 August 2009); doi: 10.1117/12.836561
Show Author Affiliations
Qian-jin Tang, Third Research Institute of the Ministry of Public Security (China)
Jie Shao, Third Research Institute of the Ministry of Public Security (China)
Zhi-zong Wu, Third Research Institute of the Ministry of Public Security (China)
Jian-yong Chen, Third Research Institute of the Ministry of Public Security (China)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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