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Ed Ginzel, retired consultant with Materials Research Institute, active member of the NDT.net community and CIVA user, explains in a technical tip  why a focused beam should not be used for general weld inspection.

His demonstration based on CIVA simulation can be downloaded here. It shows that the increase of sensitivity due to focusing is done at the expense of reducing sensitivity in the weld/HAZ zone, thereby requiring the operator to use more receiver gain in the TCG construction in the region of interest. As a result of the increased beam spread that occurs after the focal point, there is reduced beam resolution.  Therefore, closely spaced indications are more difficult to resolve.

This tip is open to discussion in the NDT.net forum. Don’t hesitate participating!

The EXTENDE's team

Hello,

We are pleased to inform you that we will be attending the upcoming ASNT Conference, in Salt Lake City, UT, USA, from the 26^th through the 29^th of October.
Want to learn more about the capabilities of CIVA simulation and how it can help improve your NDT processes? Come and visit our booth number 1029.

Interested in in learning about: Advanced Tools Based on Simulation for Analysis of Ultrasonic Data?

Attend the presentation of Ms. Erica Schumacher.

This presentations will take place on Wednesday, 28 October at 3:30p.m. in Ballroom D (Data Management for UT and EC).

We look forward to seeing you at this event.

EXTENDE's team.