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The Development of Noncontact Air Coupled Ultrasonic Testing
(Non Contact Air Coupled Ultrasonic Testing：NAUT）2009/09/01
We have developed NAUT (Non Contact Air Coupled Ultrasonic Testing）with high power square burst waves.
Square burst ultrasonic wave is much high power than the pulse wave, the frequency and wave number is available for change, so it is easy to find out the optimum conditions, NAUT is suitable for transmission and receiving of high power.
This paper describes the principle, suitable frequency, wave number, incident angle, selection of probe by square burst wave with NAUT and detecting defects of thin plate, the weld defect and application,
You can see the technical document by the following link.
