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In part 5 of the Digital Revolution video series, Shane Walton with University of Ultrasonics discusses Amplitude Precision, as it relates to the Bit Depth of the Digitizer found in ultrasonic testing instruments.

In part 4 of the Digital Revolution video series, Shane Walton with University of Ultrasonics discusses Amplitude Fidelity, as it relates to digitizing an analog A-Scan.

Shane Walton with University of Ultrasonics walks us through a few examples of performing a manual Acoustic Wedge Verification to profile PAUT Rexolite wedges. Also presented are tips to get optimum results- including gating strategies and digitization principles. Original Olympus video link- www.olympus-ims.com/en/resources/webinars/webinar-phased-array-tof-calibrations-for-precision-measureme...

In part 3 of the "Digital Revolution" series, Shane Walton with University of Ultrasonics explores the principles of timing error that may occur when converting analog A-Scans to digital, utilizing different Digitization Frequencies and Sampling Rates. Simple, nominal testing frequencies are considered here. The UT practitioner must be aware that a range of frequencies are typically present dur...

In this installment, Shane Walton with University of Ultrasonics compares TFM and Phase Coherence Imaging results on everyday weld flaws- lack of sidewall fusion and porosity. The component under examination is carbon steel material, half- inch thick, single V weld geometry with a 37.5 degree bevel. Typical API- type weld sample.

In part 2 of the "Digital Revolution" series, Shane Walton with University of Ultrasonics explores the history of Sampling Theorem- starting with Harry Nyquist and his principles that are still in use today in the realms of telecommunications, digital music production, and of course- Ultrasonic Testing.

In this first video of the "Digital Revolution" series, Shane Walton with University of Ultrasonics introduces us to a few of the digitization principles associated with UT testing instruments. Digitization Frequency, Sampling Rate, and other topics are discussed.

A real world sample containing HTHA (High Temperature Hydrogen Attack) is examined using several techniques- 0- Degree Linear PAUT, negative 30 to positive 30 L- Wave Sectorial PAUT, Conventional TFM, and Phase Coherence Imaging TFM. Phase Coherence Imaging (PCI) was recently introduced on the OmniScan X3 instrument, and is shown here with a 5L64 transducer, contact, on a 3" thick sample.

Kevinn Morgan and Shaun Meerholtz with De-Tect Unit Inspection recently dropped off a full kit of ScanBuddy weld and corrosion scanners for me to test- drive here at the University of Ultrasonics. The scanners were easy to setup and use, seem really sturdy, and are very competitively priced. One box of scanners could tackle a large range of PAUT, TOFD and TFM applications. Contact info: kmorgan...

Join Paul and Shane on Friday, April 8th 2022 from noon- 4PM at the University of Ultrasonics in Houston for an Open House and PA-CAT demo. We will be set up in the rear of the building, weather permitting. Inside if it decides to rain. 16903 Buccaneer Ln, Ste 102 Houston, TX 77058

This video serves as an intro to Shane Walton, GM and Instructor at the University of Ultrasonics in Houston, and also to the Olympus OmniScan X3-64 instrument. A TFM setup is created to detect and size cracks in carbon steel specimens. Information about courses, services, and scheduling can be found at universityofultrasonics.com/ and further inquiries can be directed to info@universityofultra...