How phased array ultrasonic probes work?
In the case of phased array ultrasound testing, a piezoelectric crystal converts electric energy into ultrasound energy. Phased arrays combine several ultrasound transducers that fire individual elements in a specific sequence to direct the soundwave in the desired direction.
Where are phased arrays used?
For example, phased arrays are used to detect and image defects including cracks, voids, and pits caused by corrosion. They are used to measure material and coating thickness and to detect changes in material properties. Another common application is to assess the quality of welds and rivets.
What is Tofd ultrasonic testing?
Time-of-flight diffraction (TOFD) method of ultrasonic testing is a sensitive and accurate method for the nondestructive testing of welds for defects. TOFD originated from tip diffraction techniques which were first published by Silk and Liddington in 1975 which paved the way for TOFD.
What is a sector probe in ultrasound?
Sector transducers produce a fan-like image that is narrow as it leaves the transducer and increases with depth. It is ideal for imaging through small “windows” such as the cranial window in the temple, or between the ribs. They are commonly used for transcranial and cardiac imaging.
Why are phased array probes used in ultrasonic testing?
Other types of probes can be designed to suit the needs of your application. Ultrasonic testing using phased array probes is fast becoming the preferred NDT method because it is efficient, reliable, and safer than some alternative methods. Linear arrays are the most commonly used phased array probes for industrial applications.
Which is the safest nondestructive ultrasonic testing method?
Phased array ultrasonic testing (PAUT) is fast becoming the safest and preferred nondestructive testing method. As a leader in the field, Olympus offers an extensive selection of standard and custom connector options for phased array probes for all types of instrumentation.
What are the new phased array probes for weld inspection?
The NEW A31 and A32 Weld Series phased array probes and wedges simplify and standardize weld inspections with fewer designs, and improve signal-to-noise ratio. This patented focusing wedge series helps compensate for beam divergence in the passive direction for pipe girth weld inspection.
When do I get discount on phased array probes?
Customers who consider buying our probes together with our powerful Mentor UT flaw detector can get hold of an even higher rebate. From now until October 31st we offer a substantial discount on all our phased array probes.