Basic Acoustic / Ultrasonic Waveforms, Refraction & Snell's Law

After the historic introduction to ultrasonic testing (https://youtu.be/WzcbFUOlFwU) and the basics of ultrasonic testing (https://youtu.be/5Pg21GHtKO8), this video continues the excursion to the world of UT by showing some of the basic acoustic / ultrasonic waveforms (Longitudinal, Transversal, Surface and Lamb Waves) in conjunction with refraction & Snell's Law. In the upcoming videos, this excursion will be continued and will finally become one of the showcases for NDE 4.0.

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Links to the individual sections of this video:
00:00 Welcome
00:35 Introduction
00:51 Longitudinal / Pressure Wave
01:31 Transversal / Shear Wave
01:55 Wavelength
03:32 Surface / Rayleigh Wave
04:03 Lamb Wave
04:29 Refraction & Snell's Law - Immersion Testing
07:43 Refraction & Snell's Law - Contact Testing
08:06 1st and 2nd Critical Angle
11:11 Final Thoughts

If you want to know more about the ultrasonic:
Evolution of the Ultrasonic Inspection Requirements of Heavy Rotor Forgings Over the Past Decades: https://www.researchgate.net/publication/252274243
Evolution of the Ultrasonic Inspection of Heavy Rotor Forgings Over the Last Decades: https://www.researchgate.net/publication/252111995
Evolution of the Ultrasonic Inspection over the Past Decades on the Example of Heavy Rotor Forgings: https://www.researchgate.net/publication/304039432

UT Videos:
History of Ultrasonic Testing: https://youtu.be/WzcbFUOlFwU
Basics of Ultrasonic Testing and Sizing: https://youtu.be/5Pg21GHtKO8
Basic Acoustic / Ultrasonic Waveforms, Refraction & Snells Law: https://youtu.be/dt-1Pe_g5vE
Working Principle of Phased Array Ultrasonic Testing: https://youtu.be/g4C-zh51FM0
Automated Ultrasonic Testing: https://youtu.be/bv_gtaVpM-w

NDE 4.0 Videos:
Welcome to the World of NDE 4.0: https://youtu.be/MzUKHmp4exE
The Four Industrial Revolutions: https://youtu.be/59SsqSWw4b0
The Four NDE Revolutions: https://youtu.be/lvLfy4zfSYo
What is NDE 4.0? - The major use cases for NDE 4.0: https://youtu.be/tB0nwxdyWZE
The WHY of Industrie and NDE 4.0: https://youtu.be/h9dF4evlQhQ
The WHY of NDE 4.0 @ Ripi Singh: https://youtu.be/55zoFwZ25pQ
Why do "I" need NDE 4.0? - A discussion on the Why of NDE 4.0: https://youtu.be/E8RHwU-VWG0
Semantic Interoperability using Ontologies and Information Models: https://youtu.be/yYtw_xz3_80
The Idea of the Digital Twin: https://youtu.be/mHGwSBcH24s
Basics of Data Security: https://youtu.be/iXZlzQ_M7nM
Digitization, Digitalization, Digital Transformation, Informatization: https://youtu.be/8Som-Y37V4w
Why Proprietary Data Formats and Interfaces Hurt AND Why Data Transparency and Ownership are Key: https://youtu.be/ptdHnT5evyQ
What is the Industrial Internet of Things (IIoT) and How to Integrate NDE: https://youtu.be/IUv6Xeo5QhU

If you want to reach me (Johannes Vrana) or my company (Vrana GmbH):
https://vrana.net/
https://www.linkedin.com/in/jvrana/
https://twitter.com/VranaGmbh
https://www.facebook.com/ndeconsulting/
https://www.xing.com/profile/Johannes_Vrana

Image sources:
https://commons.wikimedia.org/wiki/File:Podelna_vlna.gif
https://commons.wikimedia.org/wiki/File:Pricna_vlna.gif

#UltrasonicTesting #Refraction #Waveform #UT #nde40

Видео Basic Acoustic / Ultrasonic Waveforms, Refraction & Snell's Law канала NDE 4.0