Laser & Optoelectronics Progress, Volume. 60, Issue 21, 2100003(2023)
Application Prospects of Distributed Optical Fiber Sensing Technique in Comprehensive Nuclear Test Ban Treaty
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Fig. 2. Comparison of co-site broadband seismometer and distributed fiber sensing waveforms
Fig. 3. Distributed fiber sensing waveforms with mean removed (band pass filtered with 1‒15 Hz)
Table 1. Minimum requirements for key technical indicators of sensors
View tableTable 1. Minimum requirements for key technical indicators of sensors
Characteristics Minimum Requirement Seismometer Hydrophone Microbarometer Passband /Hz 0.02‒16 1‒100 0.02‒4 Sensor noise At least 10 dB below minimum earth noise at the site over the passband At least 10 dB below Urick’s deep ocean low noise curve At least 18 dB below minimum acoustic noise （Minimum noise level at 1 Hz： ~5 mPa） Sampling rate ≥40 samples per second ≥240 samples per second ≥10 samples per second Resolution/Sensitivity 18 dB below the minimum local seismic noise ≤60 dB per μPa （1 Hz band）；≤81 dB per μPa （wideband） ≥1 count per 1 mPa Dynamic range /dB ≥120 ≥120 ≥108
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Zhehan Liu, Zhi Zeng, Xiaoming Wang, Jian Li, De Nan, Zeyu Liu. Application Prospects of Distributed Optical Fiber Sensing Technique in Comprehensive Nuclear Test Ban Treaty[J]. Laser & Optoelectronics Progress, 2023, 60(21): 2100003
Paper Information
Category: Reviews
Received: Aug. 30, 2022
Accepted: Oct. 7, 2022
Published Online: Oct. 26, 2023
The Author Email: Zhi Zeng (zengzhi@tsinghua.edu.cn)
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