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    • 4. 发明授权
    • Electroacoustic delay line apparatus
    • 电声延迟线装置
    • US4292608A
    • 1981-09-29
    • US61089
    • 1979-07-26
    • Robert W. WeinertJohn de Klerk
    • Robert W. WeinertJohn de Klerk
    • H03H9/40H03H9/30
    • H03H9/44H03H9/40
    • An electroacoustic delay line apparatus is disclosed including an acoustic bulk wave generating transducer positioned at one end of a delay line, with a predetermined spacing being provided between the respective electrode elements of the transducer array, such that the acoustic energy radiation from the bulk wave transducers on the end of the delay line interfaces constructively for certain frequencies at selected positions on the sensor transducer surface of the delay line. Therefore each input signal frequency of the acoustic waves is translated into a desired position on the sensor transducer surface of the delay line. The elements of the transducer array are electrically phased such that any electrode element is phase shifted by .pi. radians relative to its nearest adjacent electrode element.
    • 公开了一种电声延迟线装置,其包括位于延迟线的一端处的声体积波发生换能器,在换能器阵列的各个电极元件之间设置预定的间隔,使得来自体波换能器的声能辐射 在延迟线接口的结尾处,对延迟线的传感器传感器表面上的选定位置处的某些频率构造性地进行接口。 因此,声波的每个输入信号频率被转换成延迟线的传感器传感器表面上的期望位置。 换能器阵列的元件是电相位的,使得任何电极元件相对于其最近的相邻电极元件相移p 1弧度。