Eddy Current Testing
Eddy current testing measures changes in an induced electromagnetic response to investigate surface and near-surface discontinuities in conductive components.
Overview
Eddy current testing measures changes in an induced electromagnetic response to investigate surface and near-surface discontinuities in conductive components.
NDT Australia provides a single enquiry and co-ordination point for industrial inspection through specialist partners. The proposed provider, personnel competence, method-specific qualifications where required, insurance and any separate approval requirements are checked for the actual scope before appointment; no general accreditation or acceptance guarantee is implied.
Assets & Materials
Accessible weld toes, pins, fastener areas and fatigue-sensitive parts of cranes and EWPs can be considered where material and probe geometry suit the procedure.
Methods & Limitations
The technician compares responses with an appropriate reference and controls probe position and lift-off. A suitable non-conductive coating may remain in place after its effect has been assessed.
Conductivity, permeability, edges, curvature and coating variation can mimic or mask indications. ECT is not general internal-volume inspection, and tube arrays or other advanced variants are not implied by conventional ECT capability.
Typical Defects & Conditions
- Fatigue-related surface indications at selected weld toes
- Crack-like responses around accessible fasteners
- Near-surface discontinuities within the demonstrated sensitivity
Planning the Inspection
Provide component material, paint condition, known repairs and prior indication locations. Agree how suspect responses will be confirmed and how access to both sides of a feature affects coverage.
Expected Reporting Deliverables
Records should identify the examined locations, reference/calibration basis, coating and access conditions, relevant responses and areas needing complementary examination.
Relevant Industries & Practical Guides
manufacturing inspection planning
Applications
Eddy Current Testing is applied across a wide range of assets and industries, including:
- Accessible weld toes, pins, fastener areas and fatigue-sensitive parts of cranes and EWPs can be considered where material and probe geometry suit the procedure.
- Inspection planning for mining assets and operators
- Inspection planning for manufacturing assets and operators
- Inspection planning for councils assets and operators
Standards & Competence Context
The references below are planning context, not a claim of accreditation, certified compliance or a universal acceptance rule. Confirm the applicable edition, part, material, procedure and acceptance criteria for this asset. Verify the appointed personnel's method, level and sector competence, insurance and any engineering authority required for the scope before work. A method standard is not itself a return-to-service approval.
- ISO 15548 — Eddy current testing equipment characteristics
Why Choose NDT Australia
- One enquiry point for scope and specialist-partner co-ordination
- Asset-linked findings with examination extent and limitations
- Separate identification of engineering and operational decisions
Frequently Asked Questions
Related Services
Explore complementary inspection scopes. Method, specialist partner and availability are confirmed for the asset and location.