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Proceedings Paper

Fiber Bragg grating based accelerometer
Author(s): H. Y. Au; S. K. Khijwania; H. Y. Tam
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Paper Abstract

A novel design of fiber Bragg grating (FBG) based accelerometer is proposed in this paper. The chirp-free mechanism on the FBG sensing element is the methodology employed in this design. The sensor has the flexibility to apply different mechanical parameters, and it shows excellent performance to different applied signals. The performance is then optimized by varying different configuration of the sensor. Good sensitivity (18με/g) and signal-to-noise ratio (20.68dB re nm/g) is easily achieved. Maximum input signal frequency up to 150Hz is able to be caught up by the specific configuration of the accelerometer. The accelerometer also has the capability of capturing a full sine wave input signal with the maximum peak-to-peak amplitude up to 3.9nm.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70042S (16 May 2008); doi: 10.1117/12.785992
Show Author Affiliations
H. Y. Au, The Hong Kong Polytechnic Univ. (Hong Kong China)
S. K. Khijwania, Indian Institute of Technology Guwahati (India)
H. Y. Tam, The Hong Kong Polytechnic Univ. (Hong Kong China)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors
David Sampson; Stephen Collins; Kyunghwan Oh; Ryozo Yamauchi, Editor(s)

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