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Proceedings Paper

Macrobend Fiber Optic Transducer For Aerospace Applications
Author(s): Bruce Johnson; Dave Brodeur; Tom Lindsay; Randy Morton
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Paper Abstract

Intensity modulation induced by macrobending in multimode optical fibers is presented as a transduction mechanism for analog position sensing in harsh aerospace environments. The macrobend sensor described herein is most suitable for short stroke applications (1 to 10 mm) where an intrinsic sensor is desired and only moderate linearity is required (< ± 1 %). Macrobend sensors are built and tested with intensity referencing and modal conditioning. The latter allow for sensor replacement without in-situ calibration. The theory, design tradeoffs, and test results of generic intrinsic macrobend position sensors are presented.

Paper Details

Date Published: 9 February 1989
PDF: 12 pages
Proc. SPIE 0989, Fiber Optic Systems for Mobile Platforms II, (9 February 1989); doi: 10.1117/12.959828
Show Author Affiliations
Bruce Johnson, ELDEC Corporation (United States)
Dave Brodeur, ELDEC Corporation (United States)
Tom Lindsay, ELDEC Corporation (United States)
Randy Morton, ELDEC Corporation (United States)

Published in SPIE Proceedings Vol. 0989:
Fiber Optic Systems for Mobile Platforms II
Norris E. Lewis; Emery L. Moore, Editor(s)

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