Ultrasonic testing is an NDT method in which beams of high-frequency sound waves are introduced into materials to determine the internal structure and other unseen characteristics. The most common method of ultrasonic testing, ultrasonic thickness measurement, is used when only one side of a test sample is accessible. Ultrasonic thickness gauges determine the thickness of a sample by measuring the amount of time it takes the sound waves to travel through the material and reflect back to the transducer. If you have any questions about our ultrasonic thickness gages, please give us a call at 1-847-577-3980 or send an email to info@bergeng.com. Our knowledgeable staff is ready to assist you.