FAQs

  • What does PAUT stand for?

    PAUT stands for Phased Array Ultrasonic Testing. This NDT inspection method is a form of Ultrasonic Testing (UT) that uses sound waves to detect irregularities in different materials. PAUT is often used to detect corrosion and changes in the properties of an asset, to measure the thickness of a material, and in welding to monitor quality and strength. With the use of PAUT, manufacturing flaws, in services flaws (e.g. corrosion and cracking) and parent metal flaws can be detected. This ensures the safety and security of an asset and alerts NDT technicians to any defects that should be repaired or assets that need to be replaced. Read More...
  • What is a PAUT inspection?

    A PAUT inspection, or Phased Array Ultrasonic Testing, is a non-destructive testing (NDT) method that uses beam technology to detect asset flaws and defects. PAUT fist became available in a portable form for commercial use in the 1990s. The PAUT method scans an asset using multiple elements at once. In fact, NDT technicians can use anywhere from 4 to 64 elements to scan a single asset. The technician receives images of the scanned areas in A, B, C, and D forms, which can then be combined to create a 3D image of the area. This allows for a significantly higher probability of detection over traditional manual ultrasonic testing (UT) methods. Read More...
  • What is the difference between phased array ultrasonic testing vs ultrasonic testing?

    Phased array ultrasonic testing (PAUT) is a form of ultrasonic testing (UT). The difference between phased array ultrasonic testing vs ultrasonic testing is the transducer. A PAUT transducer uses multiple elements during a scan. Beams are emitted sequentially at multiple angles allowing PAUT to create a more detailed scan. Other UT methods, on the other hand, use a single probe to analyze an asset. By emitting multiple beams, PAUT allows for the inspection of even the most complex assets. Complex assets can be inspected with greater ease and in less time using the PAUT method of non-destructive testing. One of the best and most advanced UT tools is the M2M Gekko. Read More...
  • What is the difference between PAUT and TOFD?

    Both PAUT (Phased Array Ultrasonic Testing) and TOFD (Time of Flight Diffraction) are forms of ultrasonic testing (UT) that are used by NDT inspection services to evaluate assets for flaws and defects. Like PAUT, TOFD uses sound waves to detect flaws by measuring the time that it takes for the sound wave to be emitted and returned. However, the difference between PAUT and TOFD is that TOFD measures both high and low amplitude waves. That is, PAUT records only high amplitude waves that are returning from the back of the asset, while TOFD records both high amplitude waves and low amplitude waves that deflect off of the tips of flaws and defects. Read More...
  • What are the advantages of phased array ultrasonic testing?

    The advantages of phased array ultrasonic testing (PAUT) include faster scans, a higher probability of detecting flaws and anomalies and the best possibility of performing an inspection. The PAUT method of non-destructive testing uses multiple beams to scan an asset. This allows scans to be completed faster than other inspection methods. Additionally, because PAUT uses multiple elements to steer, focus and scan beams, even the most complex assets can be inspected. When testing welds, many NDT inspection companies will use PAUT because this NDT inspection technology offers the ability to test from multiple angles, resulting in a greater probability of detecting flaws and irregularities. Read More...