Design of a Novel MEMS Resonant-Column Type Bionic Vector Hydrophone
Design of a Novel MEMS Resonant-Column Type Bionic Vector Hydrophone
A Resonant-column Type Vector Hydrophone based on MEMS technology and bionic principle was presented, which consists of two-dimensional bionic hydrophone and pressure hydrophone. Based on acoustic theory, the design and manufacture of the vector hydrophone are described. Preliminary characterization calibration of the hydrophone were performed in National Defense Underwater Acoustics Calibration Laboratory of China. Results show that working frequency band is 0-3KHz, X-channel sensitivity is -177.9dB (2KHz), Y-channel sensitivity is -175.4dB (2KHz), pressure channel sensitivity is -175.8dB (2KHz); And the Resonant-column Type Bionic Vector hydrophone not only possesses good "8" directional pattern but also can withstand 3MPa pressure. The application of this novel MEMS Resonant-column Type Bionic vector hydrophone is broad, from civil ships' evading bonds, fishery to hydrospace detection.
- North University of China China (People's Republic of)
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