TY - GEN
T1 - A novel Fiber optic sensing system for monitoring debris flows
AU - Chu, Chung Ray
AU - Huang, Ching Jer
AU - Tien, Tsung Mo
N1 - Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - This study presents a novel fiber optic sensing system for monitoring debris flows. Thanks to their light weight, immunity to electromagnetic interference, high sensitivity, and very low optical loss, fiber optic sensors can be potentially utilized to monitor debris flows, which usually occur in mountainous regions far from available electricity. The ground vibrations caused by debris flows can be sensed by a Fiber Bragg Grating (FBG) Accelerometer (Gavea Sensor GS 6500) and the associated light source, and data logger are provided by a Braggscope (Fiber Sensing FS 5500). Four FBG Accelerometers were deployed along the Ai-Yu-Zi Creek and the Chu-Shui Creek in Nan-Tou County, Taiwan, respectively; and the Braggscope was located at the front data-receiving center. The calibration experiment was carried out to compare the performance of FBG accelerometer with other sensors used for detecting debris flows, such as geophone and microphone. The signal-to-noise ratio (SNR) of FBG accelerometer was higher than that of geophone, while the two instruments sensed the same vibration source. The results showed that fiber optic sensing technique could be used as an alternative for monitoring debris flows.
AB - This study presents a novel fiber optic sensing system for monitoring debris flows. Thanks to their light weight, immunity to electromagnetic interference, high sensitivity, and very low optical loss, fiber optic sensors can be potentially utilized to monitor debris flows, which usually occur in mountainous regions far from available electricity. The ground vibrations caused by debris flows can be sensed by a Fiber Bragg Grating (FBG) Accelerometer (Gavea Sensor GS 6500) and the associated light source, and data logger are provided by a Braggscope (Fiber Sensing FS 5500). Four FBG Accelerometers were deployed along the Ai-Yu-Zi Creek and the Chu-Shui Creek in Nan-Tou County, Taiwan, respectively; and the Braggscope was located at the front data-receiving center. The calibration experiment was carried out to compare the performance of FBG accelerometer with other sensors used for detecting debris flows, such as geophone and microphone. The signal-to-noise ratio (SNR) of FBG accelerometer was higher than that of geophone, while the two instruments sensed the same vibration source. The results showed that fiber optic sensing technique could be used as an alternative for monitoring debris flows.
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U2 - 10.1007/978-3-642-31445-2_29
DO - 10.1007/978-3-642-31445-2_29
M3 - Conference contribution
AN - SCOPUS:84898074195
SN - 9783642314445
T3 - Landslide Science and Practice: Early Warning, Instrumentation and Monitoring
SP - 227
EP - 233
BT - Landslide Science and Practice
PB - Springer Science and Business Media Deutschland GmbH
T2 - 2nd World Landslide Forum, WLF 2011
Y2 - 3 October 2011 through 9 October 2011
ER -