Features of Ultrasonic Testing
Do you know which technology is used to detect metallic discontinuity or detect cracks?
Are you curious to know about the ultrasonic sensor? If yes, it is the Ultrasonic Testing technology used in several industries for various purposes.
What is Ultrasonic Testing?
Ultrasonic testing is a non-destructive testing method that uses ultrasonic waves to detect anomalies in material. High-frequency ultrasonic wave is transmitted into the material to detect flaw.
How does it work?
Ultrasonic testing uses piezoelectric transducer that transmit ultrasonic (sound) wave into the material and the reflected wave is received by the receiver. Time taken for the ultrasonic wave to travel into the material and reflected from the backwall is measured to determine the thickness of the material. Any discontinuities of wave in between are identified as flaws or defects.
Transducers for wave transmission and detection
The transducer in an ultrasonic sensor that transmit ultrasonic wave is transmitter and that receive the wave is receiver.
Eight qualities of the Ultrasonic Testing
Able to determine thickness and estimate size and defects
Provide Immediate results upon testing
High accuracy when compared to other NDT methods for determining flaws and depth
Non hazardous to personnel
Sensitive to both surface and subsurface discontinuities
High depth penetration to detect deeper flaw within the material
Only one side access is required to perform testing
High sensitivity to air void that is suitable to detect small flaws












