利用单通道超声波探伤仪所具有的性能,经过简单的改造来达到在同一屏幕上同时观察多个探头的探测结果,并在探伤工作中加以应用,这是很有意义的。现将试验情况介绍于下。一、时基线的利用 A型超声波探伤仪荧光屏上的水平扫描线(时基线)是表示超声波从发出到接收的时间的,代表了超声波所传播的距离。仪器的 Using single channel ultrasonic flaw detector has the performance, through simple transformation to achieve the same screen at the same time to observe the probe results of multiple probes, and in the detection work to be applied, which is significant. The test situation is introduced below. First, the use of time baselines A-type ultrasonic flaw detector on the screen of the horizontal scanning line (time base line) is issued from the ultrasound to receive the time, on behalf of the ultrasonic transmission distance. Instrument