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An intrinsic optical-fiber position sensor with schemes for temperature compensation and resolution enhancement

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5 Author(s)
Shiping Chen ; Dept. of Electr., Electron. & Inf. Eng., South Bank Univ., London, UK ; B. T. Meggitt ; A. W. Palmer ; K. T. V. Grattan
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This paper presents an optical fiber based position monitoring system, incorporating a high birefringent optical fiber and white-light interferometry. The effects of temperature variation are largely eliminated using a scheme of detecting the “relative position within the stroke”. A fringe-order identification technique employing two or more broad-band sources is described which can be used to enhance the resolution of the position detection

Published in:

Journal of Lightwave Technology  (Volume:15 ,  Issue: 2 )