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An electrical instrument for detecting or monitoring sound under water.


(Electronics) an electroacoustic transducer that converts sound or ultrasonic waves travelling through water into electrical oscillations


(ˈhaɪ drəˌfoʊn)

a device for detecting sounds transmitted through water, as for locating submarines or measuring the flow of water through a pipe.
References in periodicals archive ?
Pro Sound Effects' latest library,Submerged,used a hydrophone to put together the collection of underwater sounds.
Alternatively, stationary receiver/ hydrophone arrays have been used to cordon off marine areas and detect tagged individuals moving within reception range (Voegeli et al.
Underwater noise is measured with an underwater microphone known as a hydrophone.
The captain has installed an Underwater Hydrophone System on board so that you can listen to the dolphins communicating live as you watch them play.
By using a simple underwater recording device called a hydrophone, scientists are able to eavesdrop on coral reef communities.
AoFunding has allowed the ESO to acquire a hydrophone and audio recording device which will allow us to undertake comparative studies of whale song within Oman and between neighbouring countries,Ao said Lamees Daar, ESOAAEs executive director
A hydrophone could listen for whale calls all right, but these hydrophones hung on a mooring line "that clanked and yanked," said John Kemp, head of at-sea operations for the WHOI Mooring Operations, Engineering, and Field Support Group.
In 1999, Hurricane Gert (pictured at left) fortuitously passed directly over one NOAA-deployed hydrophone, and Makris recently had his paper analyzing those findings accepted by Geophysical Research Letters.
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.
Underwater vibrations also are modeled as longitudinal pressure waves and can be detected using a similar hydrophone.
The entrance to Little Egg Harbor was monitored by hydrophone 1 (considered to be 0 km from the inlet for the purposes of this study).