Title: High frequency small two-dimension coseismal column type vector hydrophone and its process
Application Number: 200510009700 Application Date: 2005.02.02
Publication Number: 1648621 Publication Date: 2005.08.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01H3/00,H04R1/44
Applicant(s) Name: Harbin Engineering Univ. Address: 150001
Inventor(s) Name: Yang Shi'e, Chen Hongjuan
Attorney & Agent: zhang guifeng
Abstract:
     The vector hydrophone consists of vector passage column casing, two vibration measuring sensors inside the casing, organic glass casing with adhered PVDF film and hanging unit. The vector passage column casing is molded with the mixture of low density epoxy resin and glass bead. The hydrophone can measure the sound pressure in water as scalar quantity and particle vibration speed in water. Compared with other HF vector hydrophones, the present invention has small size, light weight, high directional property, high sensitivity and good phase characteristic, so that it may be used in designing base sonar array and may be used widely in various hydroacoustic measurements to complete HF measurement.
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