Source: wikibot/ultrasonic-testing
= Ultrasonic testing
{wiki=Ultrasonic_testing}
Ultrasonic testing (UT) is a non-destructive testing (NDT) method used to evaluate the properties of materials, detect flaws, and measure thickness. It employs high-frequency sound waves, typically above 20 kHz, which are beyond the audible range for humans. \#\#\# Key Aspects of Ultrasonic Testing: 1. **Principle**: UT works by transmitting ultrasonic waves into a material and analyzing the reflected waves.