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The Research of the Pressure-resistant Vector Hydrophone

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Tutor: ChenHongJuan
School: Harbin Engineering University
Course: Underwater Acoustics
Keywords: Vector Hydrophone,Pressure-resistant,Optimize
CLC: TB565.1
Type: Master's thesis
Year:  2011
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Abstract:
Because of the great resource wealth potential and the important stratagem status of the ocean, all countries start to develop all kinds of instruments and equipments, especially the pressure-resistant vector hydrophone, to explore the resource in the deep-ocean.Three pressure-resistant vector hydrophones are developed in this paper. The first planar pressure-resistant spar hydrophone adopts the trilaminar acceleration, the size is¦Õ100mm¡Á174mm, the frequency rang is from 20Hz to 200Hz, the capabilities of directionality and sensitivity are still normal after the 20MPa pressure test; The second one is central-compressed sphericity hydrophone, with air cavum, the diameter of the sphere is¦Õ130mm, the frequency rang is from 20Hz to 1000Hz. the capabilities of directionality and sensitivity are also still normal after the 20MPa pressure test; Based on the second one, the third one changes the air cavum of the acceleration to the oil cavum, the diameter of the sphere is¦Õ130mm,too, the frequency rang is from 20Hz to 1000Hz, the capabilities of directionality and sensitivity of the X channel and the Y channel are still normal after the 20MPa pressure test, but the capabilities of the Z channel is lost.In a word, the pressure-resistant vector hydrophones have been executed in this paper, and offer the reference to the design of the resist high pressure vector hydrophone in the future.
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