Production metrology design and calibration for TMT primary mirror fabrication used at multiple manufacturing sites

Ulrich Mueller

doi:10.1117/12.2232036

27 July 2016 Production metrology design and calibration for TMT primary mirror fabrication used at multiple manufacturing sites

Ulrich Mueller

Author Affiliations +

Proceedings Volume 9906, Ground-based and Airborne Telescopes VI; 99060Z (2016) https://doi.org/10.1117/12.2232036
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

This paper describes the design of the surface metrology instrument used for manufacturing the 1.5m segmented telescope mirrors. It discusses challenges associated with the design of the instrument, tracking of segment surface data measured with the instrument and cross calibration of the instruments for use at multiple manufacturing sites. The instruments were evaluated for repeatability and reproducibility.

Citation Download Citation

Ulrich Mueller "Production metrology design and calibration for TMT primary mirror fabrication used at multiple manufacturing sites", Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99060Z (27 July 2016); https://doi.org/10.1117/12.2232036

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