Basics of the Ultrasonic Sound Field and why some of your training material might be misleading
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- čas přidán 22. 07. 2024
- The Ultrasonic Sound Field is usually quite directional which limits the detectability. To conduct a proper ultrasonic inspection or examination it is key to have a good understanding of the ultrasonic field. This video details the basics, including a discussion of the effect of the bandwidth on the sound field (which unfortunately is neglected in the bulk of the existing literature and training material).
For any consulting or training on ultrasonic testing please get in contact with me. If you like this video please give a thumbs up and if you like the NDE 4.0 CZcams channel please subscribe.
Links to the individual sections of this video:
00:00 Welcome
01:00 Sound Field of a Round Transducer
03:15 Bandwidth Correction
07:03 Sound Field of a Phased Array Probe
08:06 Sound Field of a Shear Wave Probe
08:38 Thoughts on the Missing Bandwidth Correction in Literature
09:56 Beam Spread
10:53 Beam Diameter
12:40 Final Thoughts
If you want to know more about ultrasonics:
Evolution of the Ultrasonic Inspection Requirements of Heavy Rotor Forgings Over the Past Decades: www.researchgate.net/publicat...
Evolution of the Ultrasonic Inspection of Heavy Rotor Forgings Over the Last Decades: www.researchgate.net/publicat...
Evolution of the Ultrasonic Inspection over the Past Decades on the Example of Heavy Rotor Forgings: www.researchgate.net/publicat...
UT Videos:
History of Ultrasonic Testing: • History of Ultrasonic ...
Basics of Ultrasonic Testing and Sizing: • Basics of Ultrasonic T...
Basic Acoustic / Ultrasonic Waveforms, Refraction & Snells Law: • Basic Acoustic / Ultra...
Working Principle of Phased Array Ultrasonic Testing: • Working Principle of P...
Automated Ultrasonic Testing: • Automated Ultrasonic T...
Basics of the Ultrasonic Sound Field and why some of your training material might not be adequate: • Basics of the Ultrason...
NDE 4.0 Videos:
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The Four Industrial Revolutions: • The Four Industrial Re...
The Four NDE Revolutions: • The Four NDE Revolutions
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The WHY of Industrie and NDE 4.0: • The WHY of Industrie a...
The WHY of NDE 4.0 @ Ripi Singh: • The WHY of NDE 4.0 @ R...
Why do "I" need NDE 4.0? - A discussion on the Why of NDE 4.0: • Why do "I" need NDE 4....
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IIoT Core Connectivity Standards: • IIoT Core Connectivity...
IIoT vs. Big Files in NDE: DICONDE: • IIoT vs. Big Files in ...
If you want to reach me (Johannes Vrana) or my company (Vrana GmbH):
vrana.net/
/ jvrana
/ vranagmbh
/ ndeconsulting
www.xing.com/profile/Johannes...
#SoundField #Beamspread #UT #UltrasonicTesting #Ultrasonics - Věda a technologie
Super sir, keep doing more videos about NDT and it's Technics.
I regularly watch your videos
THANK YOU SO MUCH! I had trouble understanding the whole side lobe thing in a book of mine. Like I was already thinking that at some angles there would be no energy transfer. Even with normal acoustics. I wish that books would integrate "in practice" more with the theoretics.
Thank you for sharing your knowledge with us make using great illustration for minimizing the confusions.
老师讲解的非常棒，内容也很丰富。nice
Thank you
Great explanation. Could you recommend some paper or other literature approaching the effects of bandwidth (or lobes) in the reflected signals?
Unfortunately no - most literature I know on this topic has too many errors in their formulas
@@NDE40 I get it. But allow me just make a little question. In a PA probe, for instance, you mean that probably I won't see ecoes corresponding to the side lobes due to a "continuous" sound field geometry, since it can have a "wider" bandwidth compared to a "theoretically single-frequency" one? I don't know if I'm clear enough.
Dear sir, is Near field effects will be there in Dual crystal probe?
Usually dual element probes have "plexiglas" wedges included within the probe and the end of the near field is within those wedges.