发明名称 |
APPARATUS FOR MEASURING ACOUSTIC PRESSURE |
摘要 |
<p>A hydrophone (10) for immersion in a liquid body defining a pressure is disclosed The hydrophone (10) includes a sensor (11) for providing an electrical signal indicative of the pressure; and a transducer (12) electrically connected to the sensor (11). The transducer (12) acts upon a fiber optic cable (15) so as to convert the electrical signal into a corresponding optical output signal for transmission within the fiber optic cable (15). The liquid body defines a depth-dependent static pressure and a dynamic pressure and the sensor (11) provides an electrical signal having a first component indicative of the static pressure and a second component indicative of the dynamic pressure. A filter (16) is electrically connected to the sensor (11) so as to receive (the electrical signal, filter out the first component, and output to the transducer (12) a uttered electrical signal indicative of substantially only the second component.</p> |
申请公布号 |
EP1961260(A1) |
申请公布日期 |
2008.08.27 |
申请号 |
EP20060804547 |
申请日期 |
2006.11.21 |
申请人 |
THALES UNDERWATER SYSTEMS PTY LIMITED;THE COMMONWEALTH OF AUSTRALIA |
发明人 |
BEDWELL, IAN |
分类号 |
G01V1/38;G01D5/26;G01D5/353;G01H9/00;G01L9/08;H04R1/44;H04R23/00 |
主分类号 |
G01V1/38 |
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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