Good topic for a future video - in essence you use the same formulas which you use for rectangular probes. However you have to calculate it for every angle and for every aperture individually.
Great video ! Does, sectoral scan and beam steering are the same ? In case of secoral scan, what combinations are used ? Is it aperture control along with focusing or aperture control alongwith angle control ? Thanks
Sectorial scans use beam steering. However, #1 sectorial scans are usually programmed to scan between two angles in certain increments and to show the result all the different angles are condensed into one picture (S-Scan). #2 beam steering is usually programmed angle by angle and evaluated using A-Scans. Usually, sectorial scans just use beam steering and with a fixed aperture. But with some more advanced instruments and with the right application .....
A 5G Antenna uses a 2D Phased Array of 64 (8x8) individual antennas and they are using the same beam stearing we are using with PAUT based on delay laws. So YES.
Hi. Really nice video. Thank you. But the question is Do we really need the Phased array inspection in real inspection case (not for scince researchings) or it's just a playgame to spend some extra money, big enough money? Or we just enough with conventional inspection? Of course it depends of the task you need to resolve, but at 99% case of inspection
I would think at least in 50% of the inspection scenarios conventional UT is sufficient. A couple of scenarios where PAUT definitely makes sense: #1 automated UT electronic angle steering or sectorial or linear scans (both mainly due to the reduced number of probes); #2 manual UT: If it is not clear which probes you will need for the job. The situation is different with TFM - but more on this subject soon.
Why its needed a linear scan? I mean whats the problem with exiting all the available crystals at a time and gathering the Data instead of linear scanning? Thank you.
If you fire all at one it is like having a very big probe. Very big probes are highly directional and highly focussed (naturally). Therefore you would NOT cover the area under the probe but only a small focal point. And tilted indicates would be very hard to detect at all.
Thank you so much. your lecture helped me in my interview.
Very much helpful video .It provides a lot of information in a very short duration
Nice explanation explaining how it is not necessary to move the probe with phased array
You are very welcome ....
day 3 of watching this channel, learning a lot
More to be puiblished soon ...
This is a really excellent video
Schön erklärt Johannes
Great video. Extremely helpful!!!
Thanks
thank you sir
You are very welcome
Good video❤️❤️
Thank you
How do you calculate the NearZone for phase array probes?
Good topic for a future video - in essence you use the same formulas which you use for rectangular probes. However you have to calculate it for every angle and for every aperture individually.
Great video !
Does, sectoral scan and beam steering are the same ?
In case of secoral scan, what combinations are used ? Is it aperture control along with focusing or aperture control alongwith angle control ?
Thanks
Sectorial scans use beam steering. However, #1 sectorial scans are usually programmed to scan between two angles in certain increments and to show the result all the different angles are condensed into one picture (S-Scan). #2 beam steering is usually programmed angle by angle and evaluated using A-Scans.
Usually, sectorial scans just use beam steering and with a fixed aperture. But with some more advanced instruments and with the right application .....
This is well explained! Is this also how the 5g antenna works?
A 5G Antenna uses a 2D Phased Array of 64 (8x8) individual antennas and they are using the same beam stearing we are using with PAUT based on delay laws. So YES.
Hi. Really nice video. Thank you. But the question is Do we really need the Phased array inspection in real inspection case (not for scince researchings) or it's just a playgame to spend some extra money, big enough money? Or we just enough with conventional inspection? Of course it depends of the task you need to resolve, but at 99% case of inspection
I would think at least in 50% of the inspection scenarios conventional UT is sufficient. A couple of scenarios where PAUT definitely makes sense: #1 automated UT electronic angle steering or sectorial or linear scans (both mainly due to the reduced number of probes); #2 manual UT: If it is not clear which probes you will need for the job. The situation is different with TFM - but more on this subject soon.
@@NDE40 I see. Thank you. Waiting for video about TFM
Great
why there is dead zone in tofd..??
Why its needed a linear scan? I mean whats the problem with exiting all the available crystals at a time and gathering the Data instead of linear scanning? Thank you.
If you fire all at one it is like having a very big probe. Very big probes are highly directional and highly focussed (naturally). Therefore you would NOT cover the area under the probe but only a small focal point. And tilted indicates would be very hard to detect at all.
It's may be more better when you it shows mc and prob image into it
Thx you so much....but gudie me channel.how defined channel???
Could you tell me the time within the video your question is about. Thanks.
You have NDT group? add me
谁来教教我英文