Investigation of fiber Bragg grating optic acceleration sensor

Dianheng Huo; Jun Chang; Xiaohui Liu; Li Min

doi:10.1117/12.839597

20 October 2009 Investigation of fiber Bragg grating optic acceleration sensor

Dianheng Huo, Jun Chang, Xiaohui Liu, Li Min

Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 74936K (2009) https://doi.org/10.1117/12.839597
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

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.

Citation Download Citation

Dianheng Huo, Jun Chang, Xiaohui Liu, and Li Min "Investigation of fiber Bragg grating optic acceleration sensor", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74936K (20 October 2009); https://doi.org/10.1117/12.839597

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