Hey Paul, I believe the exam (at least the exam we do) standard is a 20dB (10%) profile, We are also Required to do the other profile, which requires a slightly more complicated and fussy technique. I typically point out the beam on the profile you demonstrated should not be symmetrical above and below the centerline, it’s an application of snells law that is not always immediately apparent.
Thank you Sir.... I don't get all things at first time... So will watch it multiple time to get the maximum out of it.... Sir is there any other way where we can ask our doubts directly to you, like where u frequent go and answer all questions regarding UT.... because i have many doubts... And I cannot write everything on comment sections... so Please let us know if there is anything like this.
You don't have to. You could pull the transducer until the signal dropped from 80 to 40. It's just easier if you add 6dB, then pull it until it drops to 80.
Another great video, and a great exercise every UT technician should perform once a year
Amazing way of explaining it Paul.. u rock
I was once told that the size of the transducer had no effect on beam spread, I now know that was incorrect. Great content, keep it coming.
Really cool stuff. I wished I had the opportunity to learn from you..
Fantastic video...best content on UT on youtube keep it up.
Very excellent, the editing is super accurate and the information is very well stated. Thank you, Jim.
Thanks for your support, Jim
As always, great information. Thank you for taking the time to post.
Always great videos.. thanks!
Hello Paul
Is this technique applicable to phased array transducers?
Sure, if you are using just a linear beamset
@@hollowayndtengineeringinc.5201 do you mean 0 degrees wedge?
Hey Paul, I believe the exam (at least the exam we do) standard is a 20dB (10%) profile, We are also
Required to do the other profile, which requires a slightly more complicated and fussy technique. I typically point out the beam on the profile you demonstrated should not be symmetrical above and below the centerline, it’s an application of snells law that is not always immediately apparent.
Great point Dwayne. You can see it's a little asymmetric on the 70.
I like how you use the word wonky. The techs look at me funny when I say it.
Hey Paul,
Thanks for the video. I was wondering Wich tool are you using to color the graph? Is it an excel function I've never heard of?
Just ESBeamTool actually. Works really well! Copy the image then paste as a background picture to the Excel chart.
Why drac dac for weld scan and without dac what happen pls explain sir
Hi Paul,
One question :-) Why you using 6 dB drop for beam profile ? To get a edge of the beam we shouldnt use 20 dB ?
Thanks for great videos.
You can do either. Most of the time I see the 6dB profile, but it's possible that wherever you are, the more common one is the 20dB.
Great video..thanks a lot.
Please more videos about defects.
Thank you Sir.... I don't get all things at first time... So will watch it multiple time to get the maximum out of it....
Sir is there any other way where we can ask our doubts directly to you, like where u frequent go and answer all questions regarding UT....
because i have many doubts... And I cannot write everything on comment sections... so Please let us know if there is anything like this.
Hi Govind, I would recommend checking out NDT.net.
@@hollowayndtengineeringinc.5201 ok sir, thank you so much for replying 🙏. I will definitely look into it.
👍🏻 nice
Hi Paul, why do you add 6db after you have received the signal from the 0 isobar?
You don't have to. You could pull the transducer until the signal dropped from 80 to 40. It's just easier if you add 6dB, then pull it until it drops to 80.
@@hollowayndtengineeringinc.5201 thank you
Like to see more videos on MUT as well