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Measurement of the Non-common Vertex Error of a Double Corner CubeThe Space Interferometry Mission (SIM) requires the control of the optical path of each interferometer with picometer accuracy. Laser metrology gauges are used to measure the path lengths to the fiiducial corner cubes at the siderostats. Due to the geometry of SIM a single corner cube does not have sufficient acceptance angle to work with all the gauges. Therefore SIM employs a double corner cube. Current fabrication methods are in fact not capable of producing such a double corner cube with vertices having sufficient commonality. The plan for SIM is to measure the non-commonalty of the vertices and correct for the error in orbit. SIM requires that the non-common vertex error (NCVE) of the double corner cube to be less than 6 (mu)m. The required accuracy for the knowledge of the NCVE is less than 1 (mu)m. This paper explains a method of measuring non-common vertices of a brassboard double corner cube with sub-micron accuracy. The results of such a measurement will be presented.
Document ID
20070016676
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Azizi, Alireza
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Marcin, Martin
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Moore, Douglas
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Moser, Steve
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Negron, John
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Paek, Eung-Gi
(Naval Research Lab. Washington, DC, United States)
Ryan, Daniel
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Abramovici, Alex
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Best, Paul
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Crossfield, Ian
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Nemati, Bijan
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Neville, Tim
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Platt, B.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wayne, Leonard
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 23, 2013
Publication Date
August 13, 2006
Subject Category
Optics
Meeting Information
Meeting: SPIE Optics and Photonics
Location: San Diego, CA
Country: United States
Start Date: August 13, 2006
End Date: August 17, 2006
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
Space Interferometry Mission (SIM)
interferometry
metrology
double corner cubes
non-common vertex

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