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A new fiber Bragg grating (FBG) based accelerometer is developed for monitoring seismic activities induced by moving
vehicles. A theoretical model of the sensor is established, and analytical formulas of describing the sensitivity and
resonant frequency are provided. Sensors of this type are fabricated and tested. The experimental results show that they
have a sensitivity of 162.8 pm/G and a resonant frequency of 242.9Hz. The minimum detectable signal of the whole
sensing system is about 12.1 &mgr;g. A field test is carried out to find out that for tracked vehicles' monitoring, a single sensor
has a detection range of about 300 meters, indicating a promising future in practical use.
Yongjie Wang,Rui Wang,Fang Li, andYuliang Liu
"A new fiber Bragg grating based accelerometer", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71334K (12 January 2009); https://doi.org/10.1117/12.810570
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Yongjie Wang, Rui Wang, Fang Li, Yuliang Liu, "A new fiber Bragg grating based accelerometer," Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71334K (12 January 2009); https://doi.org/10.1117/12.810570