- Acoustic Cavitation - TU Darmstadt (Germany)
- Acoustical Standards - Acoustical Society of America
- How Stuff Works: How Ultrasound Works - Illustrated narrative takes you inside the ultrasound machine and shows you how this technique is used to look inside you.
- Nondestructive Material Testing with Ultrasonics - Introduction to the basic principles.
- Ultrasonics - Dedicated to the art and science of ultrasonic nondestructive testing and allied fields.
- Vibrationdata.com Tutorials - The tutorials and course materials require a username and password which can be obtained with an annual subscription fee.
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