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Proceedings Paper

A Hybrid Incremental/Absolute Optical Encoder For Measuring The Position Of Telescope Domes
Author(s): Robert Kibrick; Calvin R. Delaney; Jack Osborne
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Paper Abstract

This report presents a design for an inexpensive and highly reliable dome position encoder which has few moving parts and which eliminates the need for a Hechanical engagement to the dome. This hybrid incremental/absolute optical encoder is now in use on the dome of the 1-meter Nickel Telescope at Lick Observatory, and will soon be installed on the dome of the Observatory's Shane 3-meter Telescope. This report discusses the costs and important points of the construction, installation, operation, and maintenance of the encoder. It also explores the feasibility of using this encoder on the domes of large telescopes such as the Keck Observatory 10-meter.

Paper Details

Date Published: 20 August 1986
PDF: 9 pages
Proc. SPIE 0628, Advanced Technology Optical Telescopes III, (20 August 1986); doi: 10.1117/12.963561
Show Author Affiliations
Robert Kibrick, University of California (United States)
Calvin R. Delaney, University of California (United States)
Jack Osborne, University of California (United States)

Published in SPIE Proceedings Vol. 0628:
Advanced Technology Optical Telescopes III
Lawrence D. Barr, Editor(s)

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