A Novel Optical Fiber Displacement Measurement System

Author:

Guan Kai Sen1,Li Yu He1,Chen Yan Xiang1,Qiu Yong Rong1

Affiliation:

1. Tsinghua University

Abstract

In order to meet the displacement measurement’s need for high precision and large measuring range, a novel design of optical fiber displacement system is proposed. Optical fiber is applied to the displacement measurement field with its simple structure, light weight, cheap cost and high precision. A displacement measurement model based on transmissive optical fiber is established, and theoretical calculation and simulation are conducted to verify the accuracy of the model. Displacement measuring experiments are completed and the results show that the transmissive optical fiber displacement measurement system has high measuring accuracy with the relative error less than 0.2% over a large range.

Publisher

Trans Tech Publications, Ltd.

Reference9 articles.

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2. Deferrari H A, Darby R A, Andrews F A, Vibrational displacement and mode-shape measurement by a laser interferometer, the Journal of the Acoustical Society of America, 42. 5 (2005) 982-990.

3. Liang H, Yan Y, Software and hardware design of displacement measurement based on raster displacement grating sensor, Modern Electronic Technique, 2003, 23: 030.

4. Hou J F, Pei L, Li Z X, Liu C, Development and application of optical fiber sensing technology, Electro-Optic Technology Application, 27. 1 (2012) 49-53.

5. Liao Y B, Li M, Zhang M, Kuang W, Optical fiber sensing techniques and applications, first ed., Tsinghua University Press, Beijing, (2009).

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