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Application |
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Weld discontinuities near the surface (i.e. cracks, porosity, fusion). |
Back |
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Alloy content, heat treatment variations. wall thickness, and plating or coating thickness. |
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Advantage |
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Relatively expedient, with instantneous results. |
Back |
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Automation possible for symmetrical parts. |
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No couplant required. |
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Probe does not have to be in intimate contact with test piece. |
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Skilled interpretive personnel |
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Limitations |
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Limited to conductive materials. |
Back |
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Shallow depth of penetration. |
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Some indications may be masked by part geometry due to sensitivity variations. |
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Reference standard required. |
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