directional hydrophone

directional hydrophone

[də′rek·shən·əl ′hī·drə‚fōn]
(engineering acoustics)
A hydrophone whose response varies significantly with the direction of sound incidence.
References in periodicals archive ?
We can't capture every sound under water - it's impractical if you're in a submarine - but one of our series advisers is a sound specialist and he goes underwater with a four-way directional hydrophone and makes recordings.

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