Basics 2 min read
The Benefits of Laser-Based Inspection
Lasers have been used in the welding industry for over 30 years for seam-tracking while welding, for inspection of weld…
THE LATEST THINKING
Every story.
Browse our articles in publication order, with new stories added automatically.
Basics 3 min read
Laser-based inspection
Laser shearographyLaser shearography uses an interferometer to detect the out-of-plane derivative of deformation of the subject due to the non-homogeneous…
Basics 2 min read
Erosion corrosion
Erosion corrosion is the corrosion of a metal which is caused or accelerated by the relative motion of the environment…
Basics 6 min read
Basic Principles of Liquid Penetrant Inspection
Liquid penetrant inspection (LPI), also known as dye penetrant inspection (DPI) or penetrant testing (PT), was first developed in the…
Basics 1 min read
Coating thickness measurement methods
Various methods of NDT are used for the measurement of coating thickness – paint thickness, plating thickness, anodising etc. These…
Basics 3 min read
Acoustic methods
Acoustic methods (also known as sonic testing, vibration testing, mechanical impedance testing) depend on exciting vibrations in a specimen by…
Basics 2 min read
ACFM technique
The Alternating Current Field Measurement (ACFM) technique is a non-contact electromagnetic technique capable of both detecting and sizing (length and…
Basics 1 min read
Holographic Non-Destructive Testing
A single large ultrasonic transducer which sends out ultrasonic waves towards the object under study and it scans the object.…
Basics 2 min read
Optical Aids Used In NDT
Optical aids embody magnifiers, microscopes, telescopes and additionally specialized devices like boroscopes, endoscopes and different fiber-optic devices for the inspection…
Basics 2 min read
Visual Inspection (VT)
Visual inspection (VT) is arguably the oldest and most widely used NDT method there is. For thousands of years, craftsmen have…
Basics 8 min read
Calibration Methods
Calibration refers to the act of evaluating and adjusting the precision and accuracy of measurement equipment. In ultrasonic testing, several…
Basics 3 min read
Piezoelectric Transducers
The conversion of electrical pulses to mechanical vibrations and the conversion of returned mechanical vibrations back into electrical energy is…
