After the historic introduction to ultrasonic testing (https://youtu.be/WzcbFUOlFwU), this video continues the excursion to the world of UT by showing some of the basics of pulse-echo ultrasonic material testing and the basic sizing methods. In the upcoming videos, this excursion will be continued and will finally become one of the showcases for NDE 4.0. If you like this video please give a thumbs up and if you like the NDE 4.0 YouTube channel please subscribe. Links to the individual sections of this video: 00:00 Welcome 00:49 Basics of Pulse Echo UT 05:26 Sizing of Large Material Flaws 06:33 Sizing of Flaws Smaller than Beam 07:53 Distance Amplitude Size Correlation 08:58 Distance Amplitude Correction (DAC) 10:02 Theory Based Sizing Methods 11:17 DGS - Distance Gain Size (German: AVG - Amplitude Verstärkung Größe) 12:47 Sizing Summary 13:36 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 #UltrasonicTesting #Sizing #UT