Theoferometer for the construction of precision optomechanical assemblies

Ashley M. Korzun; Ronald W. Toland; Raymond G. Ohl; Vincent Holmes; Louis R. Worrel

doi:10.1117/12.671326

7 July 2006 Theoferometer for the construction of precision optomechanical assemblies

Ashley M. Korzun, Ronald W. Toland, Raymond G. Ohl, Vincent Holmes, Louis R. Worrel

Proceedings Volume 6273, Optomechanical Technologies for Astronomy; 627326 (2006) https://doi.org/10.1117/12.671326
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

The increasing difficulty of metrology requirements on projects involving optics and the alignment of instrumentation on spacecraft has reached a turning point. Requirements as low as 0.1 arcseconds for the static, rotational alignment of components within a coordinate system cannot be met with a theodolite, the alignment tool currently in use. The ¹"theoferometer" is an interferometer mounted on a rotation stage with degrees of freedom in azimuth and elevation for metrology and alignment applications. The success of a prototype theoferometer in approaching these metrology requirements led to a redesign stressing mechanical, optical, and software changes to increase the sensitivity and portability of the unit. This paper covers the characteristic testing of the first prototype, improvements made to design a second prototype, and planned demonstration of the redesigned theoferometer's capabilities as a "theodolite replacement" and low-uncertainty metrology tool.

Citation Download Citation

Ashley M. Korzun, Ronald W. Toland, Raymond G. Ohl, Vincent Holmes, and Louis R. Worrel "Theoferometer for the construction of precision optomechanical assemblies", Proc. SPIE 6273, Optomechanical Technologies for Astronomy, 627326 (7 July 2006); https://doi.org/10.1117/12.671326

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