Wall Thickness Testing

An ultrasonic thickness gauge is a measuring instrument for non-destructive investigation of a material’s thickness using ultrasonic waves. It is used for ultrasonic thickness measurement (UTM) of the thickness of a solid element.

Ultrasonic thickness gauges are designed to improve safety and ensure the reliability of materials subject to corrosion or erosion.

The gauge is frequently used to monitor steel thickness in various areas of ships and offshore constructions. It is also used for monitoring pipelines.

An ultrasonic thickness gauge is a non-destructive testing (NDT) method that evaluates the thickness of a component by measuring the time it takes for sound to travel from the transducer through the material to the back end of a component, and then measures the time of reflection back to the transducer.

The gauge then determines the thickness based on the velocity of sound through the material being tested.