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07-06-2009, 11:01 AM
Post: #1

A hydrophone is a sound-to-electricity transducer for use in water or other liquids, analogous to a microphone for air. Note that a hydrophone can sometimes also serve as a projector (emitter), but not all hydrophones have this capability, and may be destroyed if used in such a manner.The first device to be called a 'hydrophone' was developed when the technology matured, and used ultrasonic waves, which would provide for higher overall acoustic output, as well as increasing detection. The ultrasonic waves were produced by a mosaic of thin quartz crystals glued between two steel plates, having a resonant frequency of about 150 kHz. Contemporary hydrophones more often use barium titanate, a piezoelectric ceramic material, giving higher sensitivity than quartz. Hydrophones are an important part of the SONAR system used to detect submarines by both surface vessels and other submarines. A large number of hydrophones were used in the building of various fixed location detection networks such as SOSUS.

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19-07-2009, 01:34 PM
Post: #2
RE: hydrophone
please can you send me the report on the topic"HYDROPHONE".My mail id is sreepriyakurup[at]
14-03-2010, 11:02 PM
Post: #3
RE: hydrophone
hey,can u send me report on 'hydrophone'.plzzzzzzz my id is:muzmil.786[at] plz , plz,plz
11-07-2010, 04:15 PM
Post: #4
RE: hydrophone
can you send me aseminar report with ppt about the topic HYDROPHONE...
12-07-2010, 04:06 PM
Post: #5
RE: hydrophone
visit this thread for more detrails on this topic:

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13-07-2010, 07:57 AM
Post: #6
RE: hydrophone
hai plz mail me the entire details of hydrophone to itsappolo13[at] its v.urgent.. plz plz do tt fast. than ku
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