The Ultrasonic Testing (UT) Level I course includes a basic introduction to the theory and principles of ultrasound including frequency, velocity, and wavelength.
It addresses the variables related to the propagation, reflection, and attenuation of sound as well as the responses from discontinuities. The various wave modes are presented in a comprehensive way so that the major wave modes are fully understood. These wave modes include compressional (longitudinal or straight beam), shear (transverse), surface (Rayleigh), and thin sheet (Lamb).
The student will be able to understand the display and to calibrate the UT instrument and identify the location of reflectors and discontinuities in various test specimens. UT equipment and transducers are demonstrated. UT is also used for precise thickness measurements and the basic procedure for this is also covered. A number of techniques and applications will also be presented including discussions on the data required for precise reporting.
This course is essential for those desiring to enter and specialize in UT. It is also beneficial for those who will not be practitioners but who want to understand the basic principles and applications of Ultrasonic Testing.
This course meets the recommendations for training as described in SNT-TC-1A.
NOTE: There is RECOMMENDED READING assigned at the beginning of the course. The completion of these assignments in addition to self-study is strongly encouraged and will add to the overall training benefit and time to be credited. It will also better prepare the student for the practical lab/’hands-on” session. It is recommended that the student a log of the self-study time. It is also recommended that the applicable Level III be involved and confirm that the reading and self-study assignments have been completed. This should become a part of the student’s training records which may be used in conjunction with subsequent certifications.