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Proceedings Paper

High accuracy alignment facility for the receiver and transmitter of laser altimeter
Author(s): Guojun Du; Xin Dong; Shengbo Mu; Chunhun Wang; Cong Wang; Zongyao Ou
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Paper Abstract

The laser altimeter include active transmitter and passive receiver with single pixel detector, the accurate co-alignment of the transmitter to receiver is a challenging task. A facility for axis measurement of transmitter and receiver had to be developed base on pentaprism and two dimensional scanning mechanism.Divide the optical beam before collimator focal plane into two conjugate paths with a pentaprism, one path is for measuring the optical axis of transmitter with beam analyzer. Another path is built with an infrared illuminated aperture stop, scan the two dimensional mechanism under the aperture stop, get the boresight of the receiver by analyzing relationship both detector energy and translation. Error Analysis show that the measurement accuracy of co-alignment of the transmitter to receiver is better than 5″, Prove that the current facility is enough for the alignment of the laser altimeter.

Paper Details

Date Published: 12 December 2018
PDF: 7 pages
Proc. SPIE 10846, Optical Sensing and Imaging Technologies and Applications, 108461Q (12 December 2018); doi: 10.1117/12.2505155
Show Author Affiliations
Guojun Du, Beijing Institute of Space Mechanics and Electricity (China)
Xin Dong, Beijing Institute of Space Mechanics and Electricity (China)
Shengbo Mu, Beijing Institute of Space Mechanics and Electricity (China)
Chunhun Wang, Beijing Institute of Space Mechanics and Electricity (China)
Cong Wang, Beijing Institute of Space Mechanics and Electricity (China)
Zongyao Ou, Beijing Institute of Space Mechanics and Electricity (China)


Published in SPIE Proceedings Vol. 10846:
Optical Sensing and Imaging Technologies and Applications
Mircea Guina; Haimei Gong; Jin Lu; Dong Liu, Editor(s)

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