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Laser Interferometer Measurement System on the Yale PDS 2020G
Published online by Cambridge University Press: 04 August 2017
Abstract
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