underwater transducer

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• Underwater acoustic communication — is a technique of sending and receiving message below water. There are several ways of doing such communication but the most common is using hydrophones. Under water communication is difficult due to factors like multi path propagation, time… …   Wikipedia

• transducer — /trans dooh seuhr, dyooh , tranz /, n. a device that receives a signal in the form of one type of energy and converts it to a signal in another form: A microphone is a transducer that converts acoustic energy into electrical impulses. [1920 25; …   Universalium

• Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …   Wikipedia

• Sound from ultrasound — Contents 1 Parametric array 2 Applications 2.1 Commercial advertising …   Wikipedia

• Military equipment of Turkey — The military equipment of Turkey includes a wide array of arms, artilleries, large surface vessels, cannons, armored vehicles, mortars, unmanned vehicles and many different equipments. Contents 1 Historical development 1.1 General 1.2 1923 1950 …   Wikipedia

• Hydrophone — A hydrophone (Greek hydro = water and phone = sound ) 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 electricity when… …   Wikipedia

• Diving regulator — and Octopus Other names Demand valve Uses Reduces pressurized breathing gas to ambient pressure and delivers it to the diver Inventor Manuel Théodore Guillaumet (1838), Benoît Rouquayrol (1860) …   Wikipedia

• Battle of the Atlantic (1939–1945) — Infobox Military Conflict conflict = Battle of the Atlantic partof = World War II caption = Officers on the bridge of an escorting British destroyer keep a sharp look out for enemy submarines, October 1941 date = September 3 1939 May 7 1945 place …   Wikipedia

• Dynamic positioning — Offshore Support Vessel Toisa Perseus with, in the background, the fifth generation deepwater drillship Discoverer Enterprise, over the Thunder Horse Oil Field. Both are equipped with DP systems. Dynamic positioning (DP) is a computer controlled… …   Wikipedia

• Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …   Wikipedia

• ultrasonics — /ul treuh son iks/, n. (used with a sing. v.) the branch of science that deals with the effects of sound waves above human perception. [1930 35; see ULTRASONIC, ICS] * * * Vibrational or stress waves in elastic media that have a frequency above… …   Universalium