Acoustic camera apparatus
    15.
    发明授权

    公开(公告)号:US3898608A

    公开(公告)日:1975-08-05

    申请号:US45641974

    申请日:1974-03-29

    CPC classification number: G01S15/8902 G01H3/125 Y10S367/90

    Abstract: A transmitter transducer projects a short time pulse of acoustic energy which impinges upon and progressively insonifies a target area to be viewed. Acoustic returns are received by an acoustic lens which focuses the energy from individual adjacent receiver strips of the target area onto a plurality of receiver transducers located behind the lens. The output signals provided by the receiver transducers are suitably processed and displayed so as to portray the target area and any targets on it. The receiver transducers are elongated narrow transducers arranged in an array with the acoustic lens having one or two spherical surfaces. The output signals provided by the receiver transducers are periodically scanned for presentation to a cathode ray tube display.

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