Phased Array is universally capable of assessing almost any damage mechanism where conventional ultrasonic flaw detectors have been used. Weld inspection and crack detection are common applications, and these tests are done across a wide range of industries including oil and gas, petrochemical plants, power generation and chemical industries, especially for the construction of new piping, pipelines, vessels and structural welded materials. Phased Array can also be effectively used to profile remaining wall thickness in corrosion survey applications when surface condition and part geometry allows.
A Phased Array probe is made up of multiple small ultrasonic element, each of which can be pulsed individually. By varying the timing of the pulse of each individual element, the ultrasonic beam can be ‘steered’ to a specific angle and focal distance – i.e. a number of beams can be swept through the examined object.
Applications for Phased Array:
Flaws that Phased Array can detect:
There are a multitude of phased array benefits due to its universal capability to perform so many inspection tasks. Here are some advantages of Phased Array:
Limitations of Phased Array: