What is the main advantage of using ultrasonic testing over other nondestructive testing methods?

Ultrasonic testing stands out among nondestructive testing methods primarily because it provides detailed information about internal material structures and can measure thickness. This ability is due to the use of high-frequency sound waves that penetrate materials and reflect off internal features, such as flaws, voids, or changes in material density. The reflected sound waves are analyzed to create a clear picture of the material's integrity and condition, which is crucial in industries where internal defects can lead to catastrophic failure.

The measurement of thickness is particularly significant in assessing the wear and degradation of components, allowing for timely maintenance and prevention strategies. Ultrasonic testing’s precision in providing both qualitative and quantitative data about internal structures makes it a favored choice in many applications, including aerospace, manufacturing, and construction, where material integrity is paramount.