A Simple Adjustment Method of Sweep Rate in Analogue Ultrasonic Testing Instrument

In an analogue ultrasonic testing instrument, a sweep rate is usually achieved by repeatedly adjusting echoes that reflected from different sound ways. It is rather complicated. A method based on the principle of time base sweep line geometric scaling of the reflection echoes was presented, and the sweep rate could be realized by adjusting echoes that reflected from different sound ways one time respectively. The method was simple, efficient, accurate and reliable.