How does an ultrasonic thickness gauge work?
How does an ultrasonic thickness gauge work?
Ultrasonic thickness measurement is a non-destructive testing method used to inspect the metal thickness of various objects such as ship hulls, piping, and structural steel. An ultrasonic thickness gauge is used to measure the thickness of metal.

Thickness measuring is a prevalent practice in many industries. It is mainly carried out to monitor corrosion and defects so that the right action can be taken at the right time to fix the damage. The detection of metal loss caused by erosion, corrosion, or damage ensures the continued safety and operation of the inspected structure. It helps to determine if you need to repair the surface or replace it totally with a newer one.

You can use a good-quality ultrasonic thickness gauge to measure the thickness and gather all the necessary information to check if the tested sample has sufficient thickness to serve the purpose for which it has been designed.

Here are the top features of an ultrasonic thickness gauge:

·       An ultrasonic thickness gauge has high accuracy and comes with a certificate of calibration that conforms to international standards.

·       A good-quality ultrasonic thickness gauge is durable and can withstand tough testing environment. It is also simple to operate with one-handed menu navigation.  

·       This device has built-in temperature compensation to ensure measurement accuracy and continuous display for more versatile and smooth measurement.

·       The min scan mode take continuous readings and statistics mode continually display readings while measuring promote better and powerful measurement operations.


An ultrasonic thickness gauge works by measuring how long it takes for an ultrasonic pulse generated by an ultrasonic transducer to travel via test piece and then reflect from the inside surface. After this measurement, the thickness of the test piece is calculated and further displayed on the digital screen. This device is portable, hence allowing it to be used for all kinds of on-site inspections.

Considering the advantages and superiority of this device over other thickness measurement systems, the device is used to measure the thickness of various materials like plastic, steel, and others.