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High accuracy alignment facility for the receiver and transmitter of the BepiColombo Laser Altimeter |
Applied Optics, Vol. 51, Issue 20, pp. 4907-4915 (2012)
http://dx.doi.org/10.1364/AO.51.004907
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Abstract
The accurate co-alignment of the transmitter to the receiver of the BepiColombo Laser Altimeter is a challenging task for which an original alignment concept had to be developed. We present here the design, construction and testing of a large collimator facility built to fulfill the tight alignment requirements. We describe in detail the solution found to attenuate the high energy of the instrument laser transmitter by an original beam splitting pentaprism group. We list the different steps of the calibration of the alignment facility and estimate the errors made at each of these steps. We finally prove that the current facility is ready for the alignment of the flight instrument. Its angular accuracy is 23 μrad.
© 2012 Optical Society of America
OCIS Codes
(120.1680) Instrumentation, measurement, and metrology : Collimation
(280.3400) Remote sensing and sensors : Laser range finder
(120.6085) Instrumentation, measurement, and metrology : Space instrumentation
ToC Category:
Remote Sensing and Sensors
History
Original Manuscript: April 3, 2012
Revised Manuscript: June 3, 2012
Manuscript Accepted: June 4, 2012
Published: July 9, 2012
Citation
Sumita Chakraborty, Michael Affolter, Kurt Gunderson, Jakob Neubert, Nicolas Thomas, Thomas Beck, Michael Gerber, Stefan Graf, Daniele Piazza, Antoine Pommerol, Guillaume Roethlisberger, and Karsten Seiferlin, "High accuracy alignment facility for the receiver and transmitter of the BepiColombo Laser Altimeter," Appl. Opt. 51, 4907-4915 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-20-4907
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