Eddy current inspection is one of several NDT techniques that use the principal of “electromagnetism” as the basis for conducting examinations. One of the major advantages of eddy current as an NDT tool is the variety of inspections and measurements that can be performed. The disadvantages of eddy current is that it can only be used on conductive materials, the surface must be accessible to the probe, the surface finish and roughness may interfere with the results and depth of penetration is limited.

 

APPLICATIONS

• Surface Breaking Cracks Metal Thinning (Corrosion)

• Tube Inspection

• Conductivity

• Heat Treat Verification

• Thickness of Coatings

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ADVANTAGES OF EDDY CURRENT

• Sensitive to small cracks and other defects

• Detects surface and near surface defects

• Inspection gives immediate results

• Equipment is very portable

• Method can be used for much more than flaw detection

• Minimum part preparation is required

• Test probe does not need to contact the part

• Inspects complex shapes and sizes of conductive materials