I was looking up what QUPA PAUT meant. But you basically summed it up for me. I Understand that it’s an instrument to inspect welds. Now, since I’m a helper in welding, do you think I could take an inspection class and move past the welding part? To be an inspector?
Now TFM; I have a few data when I tried a large pitch probe, fewer # of active elements, and it still comparable to high number of elements, lower pitch. 🙃 Effective aperture area is the key in that case! Especially for TFM.
It's just what most people do. For the longest time, focusing at a true depth was all you *could do* on the most popular instruments. For the most part with general probes and common inspections it will work fine. Nowadays there are much more options.
And that is the big problem with focusing isn't it? Ooooh we have all these elements let's just shoot a shitload of sound all at once that will capture everything!!!!!!...........yeahhhhhh
Very easy to over-focus with large aperture/thickness ratios especially at high frequencies. Admittedly, this comparison is extreme. I'm using 64-elements at 10MHz.
@@hollowayndtengineeringinc.5201 Paul, great videos. Have you done a video on the differences between unfocused scans and focused scans? Maybe showcasing the different focal planes and their benefits / disadvantages? Appreciate your help
I was looking up what QUPA PAUT meant. But you basically summed it up for me. I Understand that it’s an instrument to inspect welds. Now, since I’m a helper in welding, do you think I could take an inspection class and move past the welding part? To be an inspector?
Yup. But there's no turning back... NDT is the most amazing thing ever!
Now TFM; I have a few data when I tried a large pitch probe, fewer # of active elements, and it still comparable to high number of elements, lower pitch. 🙃 Effective aperture area is the key in that case! Especially for TFM.
Really nice video with great visuals to compare apples to apples :)
Excellent once again, thank you for this. Jim H. Portland, Or
Great Paul, very clare.
64e and an X3! Go TFM!! I kidding 😄 very good video. Thanks!
Thank you for your video
oh...pual...i miss you'r hair texture...
Hey Paul, is focussing at t x 1.5 written in a spec somewhere or is it just common knowledge amongst experienced phased array techs? Regards
It's just what most people do. For the longest time, focusing at a true depth was all you *could do* on the most popular instruments. For the most part with general probes and common inspections it will work fine. Nowadays there are much more options.
@@hollowayndtengineeringinc.5201 Great thanks
And that is the big problem with focusing isn't it? Ooooh we have all these elements let's just shoot a shitload of sound all at once that will capture everything!!!!!!...........yeahhhhhh
Very easy to over-focus with large aperture/thickness ratios especially at high frequencies. Admittedly, this comparison is extreme. I'm using 64-elements at 10MHz.
@@hollowayndtengineeringinc.5201 Paul, great videos. Have you done a video on the differences between unfocused scans and focused scans? Maybe showcasing the different focal planes and their benefits / disadvantages? Appreciate your help