Reflective fiber optic displacement sensor with intensity compensation

Haibao Lu; Tao Xu; Huayong Yang; Zhifeng Chen

doi:10.1117/12.403900

10 October 2000 Reflective fiber optic displacement sensor with intensity compensation

Haibao Lu, Tao Xu, Huayong Yang, Zhifeng Chen

Proceedings Volume 4222, Process Control and Inspection for Industry; (2000) https://doi.org/10.1117/12.403900
Event: Optics and Optoelectronic Inspection and Control: Techniques, Applications, and Instruments, 2000, Beijing, China

Abstract

A reflective displacement sensor utilizing three fibers, one transmitting and two receiving with different core diameters, is described in this paper. On the basis of optical field distribution of multimode fiber, the intensity compensation mechanism of this sensor is analyzed in great detail, at the same time the displacement modulating functions and corresponding simulating carves are presented. Results show that this sensor can effectively compensate for variations in the source intensity, for losses in the optical fibers, and for variations in the reflectivity of the reflector surface.

Citation Download Citation

Haibao Lu, Tao Xu, Huayong Yang, and Zhifeng Chen "Reflective fiber optic displacement sensor with intensity compensation", Proc. SPIE 4222, Process Control and Inspection for Industry, (10 October 2000); https://doi.org/10.1117/12.403900

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