TY - JOUR
T1 - Unattended ground sensor based on fiber Bragg grating technology
AU - Zhang, Yan
AU - Li, Sanguo
AU - Yin, Zhifan
AU - Cui, Hong Liang
AU - O'Donnell, Kurt
AU - Pastore, Robert
AU - Pellicano, Michael
AU - Black, Dowell
AU - Kosinski, John
PY - 2005
Y1 - 2005
N2 - In this paper we have demonstrated an unattended seismic wave sensor based on the optical fiber Bragg grating (FBG) sensing technology. The basic principle of seismic wave detection and the fiber Bragg grating sensing technique is introduced in brief. Our FBG seismic sensor system consists of the broadband light source, FBG sensors coupled with spring / mass configuration, 3-dB optical couplers, demodulator FBG gratings, signal detection and processing hardware. Systematic experiments were carried out in Fort Dix at New Jersey. Target source includes personnel, military HMMWV and wheeled truck. The FFT analysis shows that the frequency response of the seismic signal is 20-40 Hz. The comparison data also show that the FBG sensor is more sensitive than the conventional seismic sensor both in personnel and vehicle detection. The ultimate object of this imbedded fiber optic sensor system is to recognize the presence of troop or vehicle movement through their induced seismic activity as a helpful tool in battlefield monitoring and perimeter defense system.
AB - In this paper we have demonstrated an unattended seismic wave sensor based on the optical fiber Bragg grating (FBG) sensing technology. The basic principle of seismic wave detection and the fiber Bragg grating sensing technique is introduced in brief. Our FBG seismic sensor system consists of the broadband light source, FBG sensors coupled with spring / mass configuration, 3-dB optical couplers, demodulator FBG gratings, signal detection and processing hardware. Systematic experiments were carried out in Fort Dix at New Jersey. Target source includes personnel, military HMMWV and wheeled truck. The FFT analysis shows that the frequency response of the seismic signal is 20-40 Hz. The comparison data also show that the FBG sensor is more sensitive than the conventional seismic sensor both in personnel and vehicle detection. The ultimate object of this imbedded fiber optic sensor system is to recognize the presence of troop or vehicle movement through their induced seismic activity as a helpful tool in battlefield monitoring and perimeter defense system.
KW - Fiber optic sensors
KW - Seismic detection
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U2 - 10.1117/12.607187
DO - 10.1117/12.607187
M3 - Conference article
AN - SCOPUS:26844542174
SN - 0277-786X
VL - 5796
SP - 133
EP - 140
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
M1 - 18
T2 - Unattended Ground Sensor Technologies and Applications VII
Y2 - 28 March 2005 through 1 April 2005
ER -