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Proceedings Paper

A radiation-hardened high-resolution optical encoder for use in aerospace applications
Author(s): Donald K Mitchell
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Paper Abstract

Advances in aerospace applications have created a demand for the development of higher precision, higher accuracy, radiation-hardened encoders. MicroE Systems' Mercury II aerospace encoder design provides the precision and accuracy required by these applications while also addressing radiation, weight, and alignment concerns. The encoder is a grating-based, reflective, interferometric encoder consisting of three major components: a scale, a readhead, and processing electronics. The system is a kit design that is easily configured and allows for forgiving of misalignments. Its large tolerance of tilts and translations during setup and operation, make this design ideal for aerospace requirements. The system is small in footprint and weight and requires minimal power for operation. The ability to attach multiple readheads to one processing electronics unit, as well as its alignment tolerances, makes it versatile enough to meet the most demanding applications.

Paper Details

Date Published: 1 May 2008
PDF: 10 pages
Proc. SPIE 6958, Sensors and Systems for Space Applications II, 69580O (1 May 2008); doi: 10.1117/12.776685
Show Author Affiliations
Donald K Mitchell, MicroE Systems, GSI Group (United States)

Published in SPIE Proceedings Vol. 6958:
Sensors and Systems for Space Applications II
Richard T. Howard; Pejmun Motaghedi, Editor(s)

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