聴ちょう音おん機き

noun

sound locator; acoustic detector; hydrophone

A device for detecting and locating sound sources, used in military, maritime, and scientific contexts. 聴音機 is the more common spelling for equipment.

• 潜せん水すい艦かんを探たん知ちするために聴ちょう音おん機きが使つかわれた。

  A sound locator was used to detect the submarine.

• この聴ちょう音おん器きは水すい中ちゅうの音おとを集しゅう音おんできる。

  This hydrophone can pick up underwater sounds.