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Proceedings Paper

Investigation of fiber Bragg grating optic acceleration sensor
Author(s): Dianheng Huo; Jun Chang; Xiaohui Liu; Li Min
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Paper Abstract

A high sensitive fiber Bragg grating (FBG) acceleration sensor is investigated; the sensor is interrogated by narrow line-width DFB laser, the output wavelength of the DFB laser is locked to -3dB of FBG reflectivity spectrum by auto-scan and scout method using single-chip-micyoco (SCM) in order to get high sensitivity. Experiments to test the sensor system's frequency character and linearity have been done, the results show the sensitivity can reach 0.1mg (g=9.8m/s2). The system will have practical usage in the future, such as detecting micro-seismic vibration signal during mine exploration.

Paper Details

Date Published: 21 October 2009
PDF: 5 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74936K (21 October 2009); doi: 10.1117/12.839597
Show Author Affiliations
Dianheng Huo, Laser Research Institute (China)
Shandong Univ. (China)
Jun Chang, Shandong Univ. (China)
Xiaohui Liu, Laser Research Institute (China)
Li Min, Laser Research Institute (China)

Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

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