A hydrophone (Ancient Greek: ὕδωρ + φωνή, lit. 'water + sound') is a microphone designed to be used underwater for recording or listening to underwater...
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Atmospheric Administration (NOAA) using its Equatorial Pacific Ocean autonomous hydrophone array. Upsweep Upsweep, from the NOAA website at 20x the original speed...
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SOSUS (redirect from Equatorial Pacific Ocean autonomous hydrophone array)
terminating at NAVFAC Barbados on 6 July 1962. The linear arrays with hydrophones placed on slopes within the sound channel enabled beamforming processing...
64 KB (7,889 words) - 18:29, 13 December 2023
water, sonobuoys have both a radio transmitter above the surface and hydrophone sensors underwater. Sonobuoys are ejected from aircraft in canisters and...
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sound pressure can be measured using a microphone, and in water with a hydrophone. The SI unit of sound pressure is the pascal (Pa). A sound wave in a transmission...
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towed array sonar is a system of hydrophones towed behind a submarine or a surface ship on a cable. Trailing the hydrophones behind the vessel, on a cable...
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the subsurface water cycle. Using both ocean-bottom seismometers and hydrophones, the scientists are able to map structures as deep as 97 kilometres (318...
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sound. The British made early use of underwater listening devices called hydrophones, while the French physicist Paul Langevin, working with a Russian immigrant...
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The Gruppenhorchgerät ('group listening device', abbreviated GHG) was a hydrophone array which was used on vessels of the German Kriegsmarine in World War...
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was detected by the Equatorial Pacific Ocean autonomous hydrophone array, a system of hydrophones primarily used to monitor undersea seismicity, ice noise...
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U-boats to find targets, which significantly lessened losses; after the hydrophone and depth charges were introduced, destroyers could potentially successfully...
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Seismic data acquisition (section Hydrophone)
locations on the surface by what is known as receivers (geophones or hydrophones). Before seismic data can be acquired, a seismic survey needs to be planned...
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is used for 3D seismic data acquisition. The ship is equipped with 24 hydrophone streamer reels in two rows, with 16 reels astern, and eight further forward...
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southern Indian Ocean (between Africa, Australia and Antarctica), by hydrophones in portions of all five major ocean basins and as distant as the North...
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hemisphere, which is primarily ocean. Hydrophone monitoring stations consist of an array of three hydrophones suspended from cables tethered to the ocean...
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(18 km/h) and 18 knots (33 km/h). The homing system consisted of two hydrophone receivers and altered the direction of the rudder via an electropneumatic...
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weaponry reinforced, while new technologies, such as ASDIC, Huff-Duff and hydrophones, were developed. At the start of World War II in 1939, the Royal Navy...
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equipment may be required instead of the usual microphone, such as a hydrophone (for underwater sounds), detectors of ultrasound (very high-frequency...
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Iceland. The ships were forced to zigzag to avoid ice floes. At 19:22, hydrophone and radar operators aboard the German warships detected the cruiser HMS Suffolk...
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deep-sea volcanoes can be difficult to detect at great distances using hydrophones.[citation needed] The critical temperature and pressure increase in solutions...
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noise-reduction). TP613, ca 1982: Development of the TP612 with passive-hydrophone target-seeker and pistol. Two-way data communications, and engine with...
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CTBTO hydrophones located south-west of Cape Leeuwin, Western Australia (HA01) and in the northern Indian Ocean. These stations have two hydrophones each...
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returned to normal. The US Navy analyzed acoustic data recorded by the SOSUS hydrophone network in the northern Pacific—four AFTAC sites and the Adak, Alaska...
38 KB (4,346 words) - 09:34, 19 August 2024
Haixun 01, equipped with a hand-held hydrophone, and the Royal Navy's HMS Echo, equipped with a hull-mounted hydrophone, in the search.: 11–12 : 36 Operators...
332 KB (28,535 words) - 11:51, 26 August 2024
protocol has been in use since the latter part of World War I, when hydrophones were invented to detect U-boats. The propellers have a characteristic...
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had a curtained bunk which faced 2 small rooms: the radio room and the hydrophone room. Control room. The main large periscope, for general use, was located...
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level between the front and back pickup. Three such cardioid microphones/hydrophones could be orthogonally oriented as a collocated triad to improve the gain...
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technology for studying seamount eruptions did not exist until advancements in hydrophone technology made it possible to "listen" to acoustic waves, known as T-waves...
75 KB (7,663 words) - 11:21, 19 July 2024
Side A No. Title Writer(s) Length 1. "Hydrophone" Max Eastley 8:59 2. "Metallophone" Max Eastley 7:02 3. "The Centriphone" Max Eastley 4:48 4. "Elastic...
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surface were measured; ambient noise intensity and direction using vertical hydrophone arrays suspended from FLIP and horizontal arrays (DIMUS) at the bottom...
14 KB (1,230 words) - 17:10, 31 July 2024