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Proceedings Paper

New telescope encoder
Author(s): J. Alan Schier; Oscar Rodriguez; Brett Sandberg
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Paper Abstract

We describe a new telescope encoder that overcomes several traditional problems. The system uses a camera, a ruled scale, and a robust image processing algorithm to determine angular position. The ruled scale can be any of a variety of materials. The system is noncontacting, dirt insensitive, and has typical alignment tolerances of 0.25 mm.

Paper Details

Date Published: 1 June 1994
PDF: 7 pages
Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); doi: 10.1117/12.176244
Show Author Affiliations
J. Alan Schier, The J. Alan Schier Co. (United States)
Oscar Rodriguez, The J. Alan Schier Co. (United States)
Brett Sandberg, The J. Alan Schier Co. (United States)


Published in SPIE Proceedings Vol. 2199:
Advanced Technology Optical Telescopes V
Larry M. Stepp, Editor(s)

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