What Is NDT—A Closer Look
We’ve already covered what NDT stands for and how the phrase is…
The Benefits of Laser-Based Inspection
Lasers have been used in the welding industry for over 30 years…
Laser-based inspection
Laser shearographyLaser shearography uses an interferometer to detect the out-of-plane derivative of…
Basic Principles of Liquid Penetrant Inspection
Liquid penetrant inspection (LPI), also known as dye penetrant inspection (DPI) or…
Coating thickness measurement methods
Various methods of NDT are used for the measurement of coating thickness…
Acoustic methods
Acoustic methods (also known as sonic testing, vibration testing, mechanical impedance testing)…
ACFM technique
The Alternating Current Field Measurement (ACFM) technique is a non-contact electromagnetic technique…
Holographic Non-Destructive Testing
A single large ultrasonic transducer which sends out ultrasonic waves towards the…
Optical Aids Used In NDT
Optical aids embody magnifiers, microscopes, telescopes and additionally specialized devices like boroscopes,…


