A Novel Optical Fiber Displacement Measurement System

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.

• Periodical: Applied Mechanics and Materials (Volumes 599-601)
• Pages: 684-688
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.599-601.684
• Online since: August 2014
• Authors: Kai Sen Guan, Yu He Li*, Yan Xiang Chen, Yong Rong Qiu
• Keywords: Displacement Measurement, Light Intensity Modulation, Optical Fiber Sensor

References

[1] Restagno F, Crassous J, Charlaix E, et al, A new capacitive sensor for displacement measurement in a surface-force apparatus, Measurement Science and Technology, 12. 1(2001) 16.

DOI: 10.1088/0957-0233/12/1/302

[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.

DOI: 10.1121/1.1910707

[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).

[6] Sun W, Li Y, Wang X L et al, Field distribution formed at plastic optical fiber end, The 11th National Optoelectronic Technology and Systems Conference, 2005, 790-794.

[7] Hoogenboom L, Hull-Allen G, Wang S, Theoretical and experimental analysis of a fiber optic proximity probe, 1984 Technical Symposium East. International Society for Optics and Photonics, 1984, 46-59.

DOI: 10.1117/12.942659

[8] Takai N, Asakura T, Statistical properties of laser speckles produced under illumination from a multimode optical fiber, JOSA A, 2. 8 (1985) 1282-1290.

DOI: 10.1364/josaa.2.001282

[9] Yin A G, Chen S L, Sun D X, Fiber-optic reflective level and its application, Chinese Journal of Scientific Instrument, 11 (1990) 244-250.