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Proceedings Paper

High Precision Control Of Galvanometer Scanner
Author(s): Francois Blais
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Paper Abstract

A high precision controller using two synchronization photodiodes or phototransistors is used to compensate the errors introduced by the position sensor of the galvanometer and its electronic driving circuit. Errors of gain, offset, and phase of a periodic waveform are easily compensated using this technique. This paper will describe the approach used. A comparison with the conventional method of reading the signal directly from the position sensor will also be made. Experimental results will be presented.

Paper Details

Date Published: 1 January 1987
PDF: 9 pages
Proc. SPIE 0817, Optomechanical Systems Engineering, (1 January 1987); doi: 10.1117/12.967406
Show Author Affiliations
Francois Blais, National Research Council of Canada (Canada)

Published in SPIE Proceedings Vol. 0817:
Optomechanical Systems Engineering
Daniel Vukobratovich, Editor(s)

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