Working principle and application scope of ultrasonic thickness gauge

High-frequency sound waves are directional. When ultrasonic waves pass through a medium such as stone, metal material, etc., they will be reflected back to their source until they encounter the boundary of another medium such as gas medium. By analyzing these reflections, the thickness of the medium to be measured can be measured.

Ultrasonic thickness gauges have a wide range of applications and are used in metals, plastics, and other composite materials. The only thing they are not suitable for is wood and wood-paper products.