发明名称 |
Method and apparatus for sensing acoustic signals in a liquid |
摘要 |
An apparatus for sensing acoustic signals in a liquid wherein an omnidirectional hydrophone exhibits a hemispheric response pattern. A hydrophone, including a transducer element and a transmitting cable, is mounted such that the transducer element is adjacent the forward face of an acoustic baffle including a layer of sound-absorbing material. The rear face of the acoustic baffle is positioned adjacent an acoustic shield including a layer of sound-reflecting material. The transmitting cable is positioned in an aperture in the acoustic baffle and the acoustic shield, and passes beyond the rear face of the acoustic shield. A flow fairing is positioned adjacent the forward face of the acoustic baffle and encloses at least the forward portion of the transducer element.
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申请公布号 |
US5436874(A) |
申请公布日期 |
1995.07.25 |
申请号 |
US19930153949 |
申请日期 |
1993.11.17 |
申请人 |
MARTIN MARIETTA CORPORATION |
发明人 |
KUHN, PHILIP M.;HODGES, FRANK P. |
分类号 |
G10K11/00;(IPC1-7):H04R17/00 |
主分类号 |
G10K11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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