Ultrasonic Thickness Testing
eLearning
This course covers essential concepts in ultrasonic thickness testing, including sound properties, equipment setup, wave modes, calibration, and signal interpretation. It supports foundational knowledge for technicians working with UT thickness measurements.
Member: $725
Credit Info
- Contact Hours: 10
- IACET CEUs: N/A
- Valid for ASNT Level III recertification: Yes
Course Overview
This course addresses the required training by documents controlling the certification program, such as NAS-410, SNT-TC-1A, and NavSea Technical Publication T9074-AS-GIB-010/271. This course content conforms to the training subjects listed in ANSI/ASNT CP-105, Standard Topical Outlines for Qualification of Nondestructive Testing Personnel. It is intended that the course shall include the online training as well as laboratory-type hands-on training under the direction of a level II or level III to meet the total hours of training required by the applicable certification document listed above.
Upon Completion, Learners Will Have Covered:
- Ultrasonic sound and particle displacement; particle density and elasticity as it affects the velocity of sound, cycles, wavelength, frequency, and hertz
- Piezoelectric crystals, transducer parts, generating ultrasound, pulse echo, and continuous sound transmission; equipment controls
- Velocity as it relates to thickness determination, acoustic impedance, interface definition, ultrasonic wave modes and properties, mode conversion, refracted angles, Snell’s Law
- Couplant; surface effects on sound transmission; sound reflection; near field and far field definition; attenuation definition
- “A”, “B”, and “C” scan presentations; digital readout and “A” scan ultrasonic thickness testing units; painted surface testing
- Transducer capabilities, efficiencies, different types of transducers for testing, pitch catch transducer, and connectors for transducers
- Calibration standard types and materials; selection of equipment and transducers
- Signal display attributes for “A” scan presentations: broadband and narrowband waveforms
- Testing variables such as surface condition, doubling, gating, discontinuities, temperatures, records, and types of couplants
- Qualification and certification documents, and a review of SNT-TC-1A
Meet the Instructor
Gary Larson
Gary Larson brings over 40 years of NDT experience across industries including nuclear, aerospace, and manufacturing. He holds ASNT Level III certifications in RT, UT, PT, MT, and VT, along with ACCP credentials. Gary has worked with Sikorsky and Pratt & Whitney, providing inspection and training in multiple methods. He currently consults as a Level III for aerospace and military suppliers and contributes to ASTM’s E07 Committee. His teaching experience includes developing and delivering online NDT courses.
Questions? Contact us at education@asnt.org
This training will meet most certification documents for ultrasonic thickness testing, such as SNT-TC-1A. Please verify that the employer’s written practice (document for certification of NDT personnel) allows for online training. Upon satisfactory completion of all training material and exams, a training certificate will be issued. Please secure this document in a safe location, as it may be needed multiple times throughout your career.
Note: Please note the contact hours being awarded for this course. To meet the training requirements in SNT-TC-1A, CP-189, and NAS-410, the student must complete the eLearning course and the necessary practical lab/hands-on sessions. These lab sessions must be overseen and documented by a Level III to ensure the required training hours are fulfilled.