| 摘要 |
<p>An ultrasonic rail inspection system (30) includes at least one ultrasonic transducer (33) mounted on a yoke (21) for attachment to a frame (20) of a rail inspection vehicle (100). The ultrasonic transducer (33) transmits ultrasonic pulses (41 ) and receives reflected ultrasonic pulses (42). A control device (51 ) controls the ultrasonic transducer (33). A clock device (52) provides clock signals to the control device (51). The control device (51) controls the ultrasonic transducer (33) to transmit the ultrasonic pulses (41) at a fixed pulse repetition period (P).</p> |
