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hydrophone

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hydrophone
[hī′drəfōn]
a small-diameter probe with a piezoelectric element, usually about 0.5 mm in diameter, at one end. When placed in an ultrasound beam, the hydrophone produces an electric signal.


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As well as traditional and new songs, the performances feature excerpts from field recordings and sounds associated with the boat itself - recorded with the aid of John's home-made hydrophone or underwater microphone.
All aboard for a narrowboat tour; A folk singer and an electronic ... by Birmingham Mail (England)
In the 17 years we've been monitoring the ocean through hydrophone recordings, we've never seen a swarm of earthquakes in an area such as this," said Robert Dziak, a marine geologist with Oregon State University.
Earthquake `swarm' at sea puzzles experts by The Register-Guard (Eugene, OR)
One of the boats will carry sonar and wireless CCTV, while the other will be armed with a hydrophone system to listen for any strange noises from the depths of the loch.
I'LL CATCH NESSIE WITH STINGRAY; Toy boats to scan loch by Daily Record (Glasgow, Scotland)
 
 
 
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