20 October 2009 Investigation of fiber Bragg grating optic acceleration sensor
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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.
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Dianheng Huo, Dianheng Huo, Jun Chang, Jun Chang, Xiaohui Liu, Xiaohui Liu, Li Min, 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); doi: 10.1117/12.839597; https://doi.org/10.1117/12.839597
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