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Guided Wave Technology (GWT)
Detect, locate and classify corrosion defects
Page last modified
April 11 2024
Guided waves are mechanical stress waves that propagate contained within the structural boundaries of pipes or plates with wavelengths that are comparable to the thickness dimensions of the pipe or plate.
Guided waves are used in rapid testing or screening tools to detect, locate and classify corrosion defects. Large sections of piping can be quickly screened with 100 percent volumetric coverage to determine precise locations of corrosion damage.
More detailed inspections can then be concentrated on the locations that are critical, thus saving money and time. These local inspections can be done using guided wave scanning equipment or with another complementary non-destructive testing method. This approach of screening and scanning provides a cost‑effective means of ensuring that representative measurements are made over considerable lengths of piping.
Pros & Limitations
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Large sections of piping can be quickly screened
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100 percent volumetric coverage
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Determine precise locations of corrosion damage
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Easy to set up
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Portable
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Robust in the field
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It is a screening tool and will need to be quantified by another NDT Method
Specification
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Areas of Application
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Oil and gas, petrochemical and power generation.
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Data Analysis
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The results are presented in a user-friendly GUI, which allows the inspector to report the data.
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Efficiency
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The data is usually analysed on-site so that any follow-up or complementary inspections can be performed immediately.
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Software
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Signals are processed by the WavePro™ Software using an advanced processing algorithm.
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Training
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GUL has a comprehensive training programme of different operator levels targeting specific GW applications.
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Inspection
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The torsional guided wave mode is highly sensitive to most defect types while experiencing low attenuation in most situations.
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Reviews (1)
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Technology Readiness Level
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[9/9]
Development
Technology demonstration
Mature / Proven
Relative Business Impact
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