Canadian Quality Inspections is now offering Phased Array Ultrasonic Testing!

Phased Array Ultrasonic Testing – also known as Phased Array UT or PAUT, is a sophisticated non-destructive testing method that employs ultrasonic probes made up of numerous small elements. These elements are individually pulsed using precisely timed computer calculations, which creates the phased nature of the technique, while the term “array” refers to the multiple elements in the system.

Unlike conventional single-element probes that must be physically moved to cover larger areas, Phased Array UT probes can electronically sweep and focus the sound beam across the test object without requiring movement. This provides a significant advantage over traditional probes.

Compared to conventional ultrasonic probes, phased arrays offer benefits such as greater portability, ease of use, faster inspection times, and enhanced safety. Phased Array UT systems capture hundreds of signals at once, increasing efficiency and reducing false alarms. When combined with simulation, Phased Array UT strategies can be optimized for better flaw detection, and the process also improves data recording and traceability.

Phased Array UT testing creates a permanent record, doesn’t emit radiation, and is highly versatile, applicable across multiple industries. Since it can identify surface and internal defects in welds (without any dead zones), it also provides detailed information on defect depth and height.

Phased Array Ultrasonic Testing Applications

Phased Array UT is typically used to perform weld inspections, scanning large areas for cracking, corrosion, and other defects with high resolution. PAUT can be used to inspect almost any material where traditional UT methods have been utilized and is often used to inspection pressure vessels, tubing, and piping.

Advantages of Phased Array Ultrasonic Testing

1. Simplified Inspection Procedures: One phased array probe can replace several conventional probes, eliminating the need for multiple setups and calibrations.

1. Seamless Flaw Detection: PAUT scans surfaces from various angles, offering broader coverage for identifying defects. This makes it especially useful for examining complex assets and measuring material thickness to detect corrosion or erosion.

1. Faster Inspections: The ability to adjust the ultrasonic beam’s shape and focal point further optimizes testing, eliminating the need for manual reconfiguration. Instant digital feedback also accelerates flaw detection and weld quality assessments.
2. More Reliable: By minimizing or eliminating mechanical scanning, PAUT not only speeds up the process but also improves the reliability of results by reducing the chance of coupling loss, a common risk with moving probes. This contributes to highly repeatable and consistent test results.