UT on Backing Bar Welds

My mic died so so all the audio is from the camera, and then heavily processed. Sigh.

Music at end:

[b.squared]

Just got into structural steel and I am using a Sonotest d20+ your videos are so helpful

[bobwayzie]

Good video, been waiting for a straight forward, spell-it-out backing bar video.

[ashleylongley]

Doing alot of exactly what you've demonstrated, single bevel backing bar, but 25, 28 and 32mm, exactly what you said, to start with shaking my head and ruler (Aussie in Australia ) out every 5 minutes, but now I look for the signals as a guide

[ndthero]

Great job Paul and thanks for the shout out for the art.

[larryrichardson]

Always informative, always enjoyable...

[weldingclassroom]

Thanks. I am introducing my HS students to NDE and checking their own groove welds. I'm a novice but very thankful for your videos. I spent hours yesterday playing with our UT machine and some vee grooves with backing. On that root signal, how would a bit of unfused bevel edge look?

[bladexxlll]

Would be good to see your tutorial/explanation on scanning partial penetration joint welds with UT conventional

[DanielRowe]

How do you determine the difference between a gap in between the bar and test plate and an indication?

[hossammohsen]

Kindly can you explain this with using phased array

[samajira]

X3, Gekko, Veo and a 5 dollars Mic 😅

[turdburglar]

Does Canda require those big 🐌 wedges that AWS calls out?

[benergy]

Hi can anyone tell me what’s the equipment?