تماشای ویدئو چگونه دستگاه یوتی را کالیبره کنیم؟ از آی-ویدئو

How to Calibrate Ultrasonic Testing Machine the test purpose is to determine welding defect at internal of welding by sending ultrasonic signal to the specimen and the result will be displayed on the screen, using piezo to produce sound signal wave and the signal will be reflected in the specimen when it collide to other material that has different impedance.