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本发明给出了一种用脉冲回波式超声检测仪检测钢管的图形显示方法和装置。这种检测仪能够检查出钢管内部初期腐蚀的情况,并将结果显示在示波器荧光屏上。
The present invention provides a graphic display method and apparatus for detecting steel pipes by using a pulse echo type ultrasonic detector. This detector can detect the initial internal corrosion of steel, and the results displayed on the oscilloscope screen.