Experimental Research of a Separate Type Fiber Optic Vector Hydrophone based on FBG Accelerometers

Jun Wang; Jing Zhu; Lina Ma; Yanqun Wu; Pan Xu; Zhengliang Hu

doi:10.1364/OFS.2018.ThE82

26th International Conference on Optical Fiber Sensors
OSA Technical Digest (Optica Publishing Group, 2018),
paper ThE82
•https://doi.org/10.1364/OFS.2018.ThE82

Experimental Research of a Separate Type Fiber Optic Vector Hydrophone based on FBG Accelerometers

Jun Wang, Jing Zhu, Lina Ma, Yanqun Wu, Pan Xu, and Zhengliang Hu

Optical Fiber Sensors 2018

Lausanne Switzerland
24–28 September 2018
ISBN: 978-1-943580-50-7

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Poster Session III (ThE)

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J. Wang, J. Zhu, L. Ma, Y. Wu, P. Xu, and Z. Hu, "Experimental Research of a Separate Type Fiber Optic Vector Hydrophone based on FBG Accelerometers," in 26th International Conference on Optical Fiber Sensors, OSA Technical Digest (Optica Publishing Group, 2018), paper ThE82.

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Abstract

A separate type fiber optic vector hydrophone (FOVH) based on FBG accelerometers is designed and tested. The experimental results show that the average acceleration sensitivities are −18 dB re rad/g, the background noises are −70 dB re rad/√Hz, and an unambiguous ‘8’ shape directivity is obtained at 315 Hz.

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