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Proceedings Paper

Fundamentals and main features of the advanced reflection noncontact two-fiber optopairs displacememnt sensor
Author(s): Vytautas Kleiza; Jonas Verkelis
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Paper Abstract

Fundamentals, design, and operation of a fiber-optical non contact reflection displacement sensor having two identical fiber optical pairs A and B in separate holders are presented. The main principle of operation of the sensor is an artificially organized crossing point of output signals A and B when the reflection body surface is displaced. The output signal (A-B) of the sensor is proportional to the displacement direction of the reflecting body surface from the fixed zero position and depends on the body reflection coefficient, light source intensity, and loss in the fibers. The output signal (A-B)/(A+B) is not dependent on the body reflection coefficient, light source intensity, loss in the fibers. This was confirmed not only theoretically, but also experimentally. The sensitivity Ssub of the sensor was considered to be as high as possible of this type of sensors.

Paper Details

Date Published: 25 January 2007
PDF: 6 pages
Proc. SPIE 6596, Advanced Optical Materials, Technologies, and Devices, 65960U (25 January 2007); doi: 10.1117/12.726457
Show Author Affiliations
Vytautas Kleiza, Kaunas Univ. of Technology (Lithuania)
Jonas Verkelis, Semiconductor Physics Institute (Lithuania)


Published in SPIE Proceedings Vol. 6596:
Advanced Optical Materials, Technologies, and Devices

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