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Proceedings Paper

Laser metrology in the micro-arcsecond metrology testbed
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Paper Abstract

The Space Interferometer Mission (SIM), scheduled for launch in 2009, is a space-born visible light stellar interferometer capable of micro-arcsecond-level astrometry. The Micro-Arcsecond Metrology testbed (MAM) is the ground-based testbed that incorporates all the functionalities of SIM minus the telescope, for mission-enabling technology development and verification. MAM employs a laser heterodyne metrology system using the Sub-Aperture Vertex-to-Vertex (SAVV) concept. In this paper, we describe the development and modification of the SAVV metrology launchers and the metrology instrument electronics, precision alignments and pointing control, locating cyclic error sources in the MAM testbed and methods to mitigate the cyclic errors, as well as the performance under the MAM performance metrics.

Paper Details

Date Published: 14 February 2005
PDF: 11 pages
Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005);
Show Author Affiliations
Xin An, Jet Propulsion Lab. (United States)
David S. Marx, Jet Propulsion Lab. (United States)
Renaud Goullioud, Jet Propulsion Lab. (United States)
Feng Zhao, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 5634:
Advanced Sensor Systems and Applications II
Yun-Jiang Rao; Osuk Y. Kwon; Gang-Ding Peng, Editor(s)

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