Nondestructive testing or non-destructive testing (NDT) is a group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. The terms nondestructive examination (NDE), nondestructive inspection (NDI), and nondestructive evaluation (NDE) are also commonly used to describe this technology. Because NDT does not permanently alter the article being inspected, it is a highly valuable technique that can save both money and time in product evaluation, troubleshooting, and research. The six most frequently used NDT methods are eddy-current, magnetic-particle, liquid penetrant, ultrasonic, and close visual inspection.
NDT is commonly used in in a verity of Sectors including Oil & Gas, Renewable Energy, Civil and Mechanical engineering, Aerospace