发明名称 |
Sealed cavity hydrophone array calibration |
摘要 |
Apparatus and method for calibrating a hydrophone array comprising a plurality of electrically interconnected hydrophones over a range of acoustic signal frequencies having a lower limit on the order of 1 Hz. Apparatus includes a container having a sealed cavity for sealing the hydrophone array in a selected fluid, an electro-acoustic projector for projecting acoustic signals of frequencies selected from the frequency range into the sealed cavity, and a reference hydrophone contained within the sealed cavity for generating a reference signal in response to each projected acoustic signal. Apparatus further includes monitoring equipment coupled to the reference hydrophone and to the hydrophone array for enabling a selected characteristic of one of the reference signals to be compared with the same characteristic of a signal generated by the hydrophone array when an acoustic signal is projected into the sealed cavity.
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申请公布号 |
US4205394(A) |
申请公布日期 |
1980.05.27 |
申请号 |
US19780957391 |
申请日期 |
1978.11.03 |
申请人 |
U S OF AMERICA NAVY SECRETARY |
发明人 |
PICKENS, GEORGE O |
分类号 |
G01V13/00;H04R29/00;(IPC1-7):H04R29/00 |
主分类号 |
G01V13/00 |
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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