Measurement capability improvement by enlarging beam divergence of moving police laser gun

Qian-jin Tang; Jie Shao; Zhi-zong Wu; Jian-yong Chen

doi:10.1117/12.836561

31 August 2009 Measurement capability improvement by enlarging beam divergence of moving police laser gun

Qian-jin Tang, Jie Shao, Zhi-zong Wu, Jian-yong Chen

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73823K (2009) https://doi.org/10.1117/12.836561
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

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.

Citation Download Citation

Qian-jin Tang, Jie Shao, Zhi-zong Wu, and Jian-yong Chen "Measurement capability improvement by enlarging beam divergence of moving police laser gun", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73823K (31 August 2009); https://doi.org/10.1117/12.836561

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available