Hydrophone
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A hydrophone is a microphone designed for underwater use, for recording or listening to underwater sound. Most hydrophones contain a piezoelectric transducer that generates an electric potential when
A hydrophone being lowered into the North Atlantic
Hydrophones and directional hydrophones using a baffle.
Piezoelectricity
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Piezoelectricity is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to app
Hydrophone
…φωνή, lit. 'water + sound') is a microphone designed for underwater use, for recording or listening to underwater sound. Most hydrophones contain a piezoelectric transducer that generates an electric potential when subjected to a pressure change, such as a sound wave. A hydrophone can also detect airborne sounds…
Piezoelectric balance presented by Pierre Curie to Lord Kelvin, Hunterian Museum, Glasgow
View of piezo crystal in the top of a Curie compensator in the Museum of Scotland.
Butane lighter piezo
Piezoelectric disk used as a guitar pickup