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  2. Side-scan sonar - Wikipedia

    en.wikipedia.org/wiki/Side-scan_sonar

    The first commercial side-scan system was the Kelvin Hughes "Transit Sonar", a converted echo-sounder with a single-channel, pole-mounted, fan-beam transducer introduced around 1960. In 1963 Dr. Harold Edgerton, Edward Curley, and John Yules used a conical-beam 12 kHz side-scan sonar to find the sunken Vineyard Lightship in Buzzards Bay ...

  3. Multibeam echosounder - Wikipedia

    en.wikipedia.org/wiki/Multibeam_echosounder

    A multibeam echosounder is a device typically used by hydrographic surveyors to determine the depth of water and the nature of the seabed. Most modern systems work by transmitting a broad acoustic fan shaped pulse from a specially designed transducer across the full swathe acrosstrack with a narrow alongtrack then forming multiple receive beams (beamforming) that are much narrower in the ...

  4. Tonpilz - Wikipedia

    en.wikipedia.org/wiki/Tonpilz

    The term tonpilz or "acoustic mushroom" may refer to a certain type of underwater electro-acoustic transducer. By sandwiching active (i.e. piezoelectric or magnetostrictive) materials between a light, stiff radiating head mass and a heavy tail mass, the transducer can effectively operate as either a projector (source) or a hydrophone (underwater acoustic receiver).

  5. Sonar - Wikipedia

    en.wikipedia.org/wiki/Sonar

    The counter-countermeasure was a torpedo with active sonar – a transducer was added to the torpedo nose, and the microphones were listening for its reflected periodic tone bursts. The transducers comprised identical rectangular crystal plates arranged to diamond-shaped areas in staggered rows.

  6. Alec Baldwin Asked Comedian to 'Leave' Before Confrontation ...

    www.aol.com/lifestyle/alec-baldwin-asked...

    A source is speaking out about Alec Baldwin's reaction to a comedian accosting him on the street. On Monday, Feb. 24, a video on social media showed a person dressed as President Donald Trump ...

  7. Orthomode transducer - Wikipedia

    en.wikipedia.org/wiki/Orthomode_transducer

    An orthomode transducer (OMT) is a waveguide component that is commonly referred to as a polarisation duplexer. Orthomode is a contraction of orthogonal mode . Orthomode transducers serve either to combine or to separate two orthogonally polarized microwave signal paths. [ 1 ]

  8. Sound reinforcement system - Wikipedia

    en.wikipedia.org/wiki/Sound_reinforcement_system

    A typical sound reinforcement system consists of; input transducers (e.g., microphones), which convert sound energy such as a person singing into an electric signal, signal processors which alter the signal characteristics (e.g., equalizers that adjust the bass and treble, compressors that reduce signal peaks, etc.), amplifiers, which produce a ...

  9. Tactile transducer - Wikipedia

    en.wikipedia.org/wiki/Tactile_transducer

    Tactile sound is often used to increase the realism of an artificial environment. For example, mounting a tactile sound transducer in a chair or couch in a home cinema or video game setup can give more of a sense of "being there". For such use, the transducer is often connected to the LFE channel of an A/V receiver.

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