Phased Array Ultrasonic Testing (PAUT) is a cutting-edge non-destructive testing (NDT) method used for detecting internal flaws, measuring wall thickness, and performing corrosion mapping in a wide range of components and structures.
Unlike conventional UT, PAUT uses multiple small ultrasonic elements within a single probe, allowing for precise control of beam direction and focus. This generates detailed, high-resolution images of the internal structure—ideal for inspecting complex geometries.
Time of Flight Diffraction (TOFD) is a highly advanced non-destructive ultrasonic testing (UT) technique used for detecting and sizing critical defects, particularly planar flaws such as cracks and lack of fusion (LOF) in welds.
In TOFD, a pair of ultrasonic probes—transmitter and receiver—are placed on opposite sides of the weld. The transmitter sends an ultrasonic pulse, and the receiver picks up :
• A lateral wave traveling along the surface
• A back wall echo reflected from the inner wall
• And most importantly, diffracted signals from defect tips (if present)
By analysing the time of flight of these diffracted waves, the precise depth and size of discontinuities can be calculated with high accuracy.
Borescope and Videoscope Inspection is a powerful visual testing method used to examine internal areas of components that are otherwise inaccessible or hazardous for human entry.
This technique utilizes flexible or rigid optical devices equipped with high-resolution cameras and lighting to inspect inside turbines, pipes, vessels, heat exchangers, engines, and other confined spaces—without dismantling equipment or requiring man-entry.
