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Proceedings Paper

Research on a multiplexed interferometry technique for absolute displacement measurement
Author(s): Sen Ma; Fang Xie; Zhaoying Li
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Paper Abstract

A sensor which exploits dual-interferometric technique for absolute displacement measurement is proposed. The interferometer performing the measurement task operates low coherent-optical interferometry and highly coherent-optical interferometry simultaneously. The absolute measurement range, which is determined by the bandwidth of the Bragg wavelength reflected by the Fiber Bragg Grating (FBG) in the sensor, is larger than 6mm. And the measurement resolution, which is determined by the highly coherent-optical interferometry, is less than 1nm.

Paper Details

Date Published: 30 November 2011
PDF: 7 pages
Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 82010O (30 November 2011); doi: 10.1117/12.906084
Show Author Affiliations
Sen Ma, Beijing Jiaotong Univ. (China)
Fang Xie, Beijing Jiaotong Univ. (China)
Zhaoying Li, Beijing Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 8201:
2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Xinyong Dong; Xiaoyi Bao; Perry Ping Shum; Tiegen Liu, Editor(s)

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