Hydrophone
id:
hydrophone-161-7426157
title:
Hydrophone
text:
A hydrophone is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates an electric potential when subjected to a pressure change, such as a sound wave. A hydrophone can detect airborne sounds but will be insensitive because it is designed to match the acoustic impedance of water, a denser fluid than air. Sound travels 4.3 times faster in water than in air, and a sound wave in water exerts
brand slug:
wiki
category slug:
encyclopedia
description:
Underwater microphone
original url:
https://en.wikipedia.org/wiki/Hydrophone
date created:
2002-07-26T09:37:39Z
date modified:
2024-08-27T07:30:06Z
main entity:
{"identifier":"Q798062","url":"https://www.wikidata.org/entity/Q798062"}
image:
fields total:
13
integrity:
15