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Laser Interferometer Measurement System on the Yale PDS 2020G

Published online by Cambridge University Press:  04 August 2017

Jin-Fuw Lee ,
Wean-Shun Tsay  and
William van Altena
Jin-Fuw Lee
Affiliation:
Yale University Observatory
Wean-Shun Tsay
Affiliation:
Yale University Observatory
William van Altena
Affiliation:
Yale University Observatory

Abstract

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We have installed a dual-axis laser interferometer system on the Yale PDS 2020G microdensitometer to replace the linear encoders. Various diagnostic tests show that the laser interferometer is a superior encoder system for the PDS with a positional accuarcy of about 0.3 micron.

Type
III. Photographic Astrometry
Information
Symposium - International Astronomical Union , Volume 109: Astrometric Techniques , 1986 , pp. 237 - 242
Copyright
Copyright © Reidel 1986 

References

Lee, J.-F. and van Altena, W.: 1983. in Astronomical Microdensitometry, edited by Klinglesmith, D.A. III., p. 151.Google Scholar
Kinsey, J. H.: 1983. in Astronomical Microdensitometry, edited by Klinglesmith, D. A. III., p. 135.Google Scholar
Kinsey, J. H., Denman, R. J., and Evzerov, A.: 1984. in Review of Scientific Instruments, vol. 55, p. 1960.CrossRefGoogle Scholar
van Altena, and Lee, J.-F.: 1983. in Astronomical Microdensitometry p. 3.Google Scholar