Macrobend Fiber Optic Transducer For Aerospace Applications

Bruce Johnson; Dave Brodeur; Tom Lindsay; Randy Morton

doi:10.1117/12.959828

9 February 1989 Macrobend Fiber Optic Transducer For Aerospace Applications

Bruce Johnson, Dave Brodeur, Tom Lindsay, Randy Morton

Proceedings Volume 0989, Fiber Optic Systems for Mobile Platforms II; (1989) https://doi.org/10.1117/12.959828
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

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.

Citation Download Citation

Bruce Johnson, Dave Brodeur, Tom Lindsay, and Randy Morton "Macrobend Fiber Optic Transducer For Aerospace Applications", Proc. SPIE 0989, Fiber Optic Systems for Mobile Platforms II, (9 February 1989); https://doi.org/10.1117/12.959828

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