Method of and apparatus for ultrasonic flaw detection
    3.
    发明授权
    Method of and apparatus for ultrasonic flaw detection 失效
    超声波探伤方法及装置

    公开(公告)号:US4699007A

    公开(公告)日:1987-10-13

    申请号:US752596

    申请日:1985-07-08

    摘要: A plurality of ultrasonic transducers or probes are positioned around a region of an object such as a steel tube to be inspected. One of the ultrasonic transducers is energized to emit an ultrasonic beam into the region, and ultrasonic waves reflected from and transmitted through the region in response to the emitted ultrasonic beam are received. Sound pressures are then measured from the reflected and transmitted ultrasonic waves, and an evaluation value is produced by arithmetically dividing the sound pressure of the reflected ultrasonic wave by the sound pressure of the transmitted ultrasonic wave.

    摘要翻译: 多个超声波换能器或探针位于待检查的钢管等物体的区域周围。 超声波换能器中的一个被激励以将超声波束发射到该区域中,并且接收响应于发射的超声波束从该区域反射并透射的超声波。 然后从反射和发射的超声波测量声压,并且通过将反射的超声波的声压通过传输的超声波的声压进行算术分割而产生评估值。