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With the shortage of NDT technicians and more demanding inspection being required from industry faster, more accurate techniques are needed. Automated UT systems from crawlers, tube/pipe scanners, robotics and immersion tank upgrades are now reasonably priced for even a small business to invest in.
From
ndt.net:
Automated UT Developments
Early AUT systems used probes to focus beams of ultrasound onto zones
along the weld fusion line. They were set at appropriate angles to detect
reflected energy from any lack of fusion at the focal areas. A set of probes
was therefore needed to cover the entire weld thickness—one set on each
side. See below:
Since then further probes have been added to inspect the volume of the
weld, another pair to give diffracted data and two more pairs for transverse
defect detection. The evolution of the equipment has thus led to a complex set
of data requiring analysis.
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