As part of the special survey, ATS performs thickness testing for vessel components. One of the biggest threats to sea vessels is corrosion – such as the reaction between the vessel’s metallic materials and salt-water to form rust. Corrosion can slowly eat away at the metal and cause material loss, resulting in decreased thickness. To accurately measure thickness, our NDT experts use ultrasonic thickness testing (UTT). In the UTT method, high-frequency sound waves are sent directly into the test material through a probe, which then reflect back. Our technicians analyze the properties of the signal to obtain a thickness reading.