Absolute measurement of tilts via Fourier analysis of interferograms

Toland, Ronald W.

doi:10.1117/12.559810

SPIE Proceedings

2004

DOI: 10.1117/12.559810

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Absolute measurement of tilts via Fourier analysis of interferograms

Ronald W. Toland

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2006

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Theoferometer for the construction of precision optomechanical assemblies

et al. 2006

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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. A "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 improvements made to the first prototype theoferometer, characteristic testing, and demonstration of the redesigned theoferometer's capabilities as a "theodolite replacement" and low-uncertainty metrology tool.

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Theoferometer for the construction of precision optomechanical assemblies

et al. 2006

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Absolute measurement of tilts via Fourier analysis of interferograms

Cited by 1 publication

References 6 publications

Theoferometer for the construction of precision optomechanical assemblies

Theoferometer for the construction of precision optomechanical assemblies

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