Eddy Current Testing

What this topic covers

Electromagnetic inspection for conductive materials, tubing and selected surface conditions.

Core ideas

Alternating electromagnetic fields induce currents in conductive material.

Defects, geometry and material-property changes alter the measured response.

Probe design and calibration determine what types of indications can be detected.

Program tradeoffs

Coverage, access, technique limitations and uncertainty should be visible in the final record.

What good evidence looks like

Inspection findings need a closed path to engineering assessment, maintenance, monitoring or documented acceptance.

Lifecycle perspective

Formal code inspection and risk-based inspection require competent specialists and current standards.