Ultrasonic testing utilizes sound waves whose frequencies (50 kHz - 50 MHz) are above the audible range for the human ear. According to the International Atomic Energy Agency, ultrasonic testing can be used for metallic and non-metallic materials. Ultrasonic testing makes use of sound to detect flaws and defects in materials.
It is good to know that the piezo-electric effect of the ultrasonic transducer makes it possible to transmit and receive from within the equipment. Ultrasonic testing systems have some functional units such as pulse receivers, transducers and display units. The instrument makes it possible for us at DELTA GROUP to inspect the internal structure of the equipment, and to detect thickness changes, welds, cracks, voids, delamination and other types of material or structural defects.
Advantages of Long Range Ultrasonic Testing (LRUT):
• Sensitive to both surfaces and subsurface discontinuities
• Flaw detection or other measurement is superior to other NTD methods
• Minimal part preparation is required
• Electronic equipment provides instantaneous results
• Detailed images can be produced with automated systems
• Thickness measurement and flaw detection
• Determining reflector position and estimating size and shape