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Olympus MX2 Weld Inspection
Optimized Workflow

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Job engineering for advanced
weld inspection

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using phased array starts
with the configuration

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of the inspection strategy using the

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Olympus NDT SetupBuilder.

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The SetupBuilder allows the user

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to define the weld bevel and

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configure the position of the probes

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for creating the phased array
inspection strategy.

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The inspection consists of a
multi angle S-scan

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made of many A-scans

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that comply with existing codes
such as ASME, EN, and similar

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for which the beam size, beam angle,
and beam focus

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are programmable by the user.

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The inspection is performed from
both sides of the weld

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using two probes perpendicular
to the weld line

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and secured at the predetermined
position in the scanner

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relative to the weld centerline.

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This scan plan along with the probe,
wedge, and beam parameters

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are typically included
in a technique sheet

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that is included with
the inspection report.

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Depending on the complexity

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and number of probes required,

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the inspection strategy
and probe parameters

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can either be created
directly on the OmniScan

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or imported from the SDHC memory card.

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Compact, lightweight, and portable,

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the Olympus COBRA scanner is
designed for phased array inspection

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of small diameter piping

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using two low-profile Olympus
phased array probes

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optimized for thin wall
weld inspection.

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The COBRA kit comes with
everything needed

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for the OmniScan to perform
one or two-sided weld inspection

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including contoured wedges that
cover the ANSI piping range

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from .84 to 4.5 inches or
21 to 114 millimeters.

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Templates included in the kit

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are used to configure the scanner
for different pipe diameters

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and to ensure proper tension
for the guide wheels

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and encoder for smooth consistent
scanning in both directions.

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The probes are secured in the scanner

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at the predetermined position
relative to the weld center line.

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The scanner is placed on the pipe

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at the inspection start position.

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Select start inspection
on the OmniScan.

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Start the water supply.

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Move the scanner
around the pipe smoothly.

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When the inspection is complete
select pause

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and select save data file.

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Analysis is performed on the OmniScan

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or offline using OmniPC.

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As the data cursor is moved
through the C-scan

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to replay the inspection,

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the S-scan from each side
of the weld is displayed.

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The A-scans that make the S-scan

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are calibrated for wedge delay,
sensitivity,

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and TCG in accordance
with the referencing code,

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typically ASME, EN, or similar.

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When a flaw is detected,
length sizing is performed

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with the cursor on the C-scan

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using an amplitude drop technique

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and the statistics displayed in the
readings

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from the scan axis.

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Depth and height sizing is performed

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with cursors on the S-scan
using amplitude drop

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or tip diffraction techniques
with statistics available

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from the UT axis.

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One hundred and twenty nine
point six percent amplitude,

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at a depth of just below the surface.

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Two point eight three millimeters

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from the face of the wedge

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Four point six seven millimeters
relative to the weld center line

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on the positive side.

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On the UT axis,

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nine point seven two millimeters
to ten point eight nine

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for an overall through-wall
dimension or height

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of one point one seven millimeters

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and a flaw length of six point
five zero millimeters.

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The flaw is added to
the indication table –

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and from the report menu:

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Information regarding the OmniScan,

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the calibration, the software,

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the setup and phased array
setup for each group,

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the component and scanner information

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and inspection results to include
the statistical readings

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and a screen shot of the flaw.

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The report can be printed
directly from here

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or saved and closed.