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Proceedings Paper

Novel optical encoder for harsh environments
Author(s): Bernard Kress; Ulrich Mueller; Vincent Brac-de-la-Perriere
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Paper Abstract

We are presenting a new optical encoder architecture for shaft encoding, both in incremental and absolute modes. This encoder is based on a diffractive optics technology platform. We have developed various disk based rotary diffractive encoders previously. This encoder is different in the way it is not a disk composed of successive gratings or computer generated holograms, but rather composed of a single element placed on the shaft. It is thus best suited for hollow shaft or end of shaft applications such as in encoder controlled electrical motors. This new architecture aims at solving some of the problems encountered with previous implementations of diffractive encoders such as disk wobble, disk to shaft centering and also encoding in harsh environments.

Paper Details

Date Published: 5 September 2014
PDF: 13 pages
Proc. SPIE 9202, Photonics Applications for Aviation, Aerospace, Commercial, and Harsh Environments V, 92020B (5 September 2014); doi: 10.1117/12.2062057
Show Author Affiliations
Bernard Kress, USI Photonics Inc. (United States)
Ulrich Mueller, UM-Mechatronics (United States)
Vincent Brac-de-la-Perriere, Univ. de Strasbourg (France)

Published in SPIE Proceedings Vol. 9202:
Photonics Applications for Aviation, Aerospace, Commercial, and Harsh Environments V
Alex A. Kazemi; Bernard C. Kress; Edgar A. Mendoza, Editor(s)

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