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Research on fiber-optic interferometric hydrophone array using frequency division multiplying technique
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作者 CAO Jianian, LI Xuyou, WANG Zhaoxia, LUO Jicheng, FU Lintai (1 Fiber-Optic Technology Institute of Harbin Bngineering University Harbin 150001) (2 Hangzhou Applied Acoustics Institute Zhejiang Fuyang 311400) 《Chinese Journal of Acoustics》 2001年第4期289-297,共9页
From the point of view of system design, a configuration of fiber-optic interferomet- ric hydrophone array and its modulation and demodulation approach using frequncy division multiplexing technique based on Phase Gen... From the point of view of system design, a configuration of fiber-optic interferomet- ric hydrophone array and its modulation and demodulation approach using frequncy division multiplexing technique based on Phase Generated Carrier (PGC) is introduced. And the em- phasis on demonstrating the relationship among the number of units N, the detectable signal amplitude D and the detectable frequency ws through analyzing the frequency spectrum of the output signal of the J × K array and the key factor which restricts N, D, Ws for increasing are presented. The maximum phare shift and the law of its variation according to frequency are specially analyzed. The results induced from some relative theory were verified by experiments. 展开更多
关键词 Research on fiber-optic interferometric hydrophone array using frequency division multiplying technique PGC KHZ
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Recent Progress in Fiber-Optic Hydrophones 被引量:8
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作者 Zhou MENG Wei CHEN +3 位作者 Jianfei WANG Xiaoyang HU Mo CHEN Yichi ZHANG 《Photonic Sensors》 SCIE EI CAS CSCD 2021年第1期109-122,共14页
Fiber-optic hydrophone (FOH) is a significant type of acoustic sensor, which can be used in both military and civilian fields such as underwater target detection, oil and natural gas prospecting, and earthquake inspec... Fiber-optic hydrophone (FOH) is a significant type of acoustic sensor, which can be used in both military and civilian fields such as underwater target detection, oil and natural gas prospecting, and earthquake inspection. The recent progress of FOH is introduced from five aspects, including large-scale FOH array, very-low-frequency detection, fiber-optic vector hydrophone (FOVH), towed linear array, and deep-sea and long-haul transmission. The above five aspects indicate the future development trends in the FOH research field, and they also provide a guideline for the practical applications of FOH as well as its array. 展开更多
关键词 fiber-optic hydrophone large-scale array very-low-frequency detection fiber-optic vector hydrophone towed linear array deep sea long-haul fiber transmission
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