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Everything Eddy Current


App Notes

Illustrated guides demonstrating the configuration and use of ETher NDE products to support particular use cases.

Leading & Trailing Edge Blade Inspection

A variety of configurations for all applications, using small shielded and unshielded coils for the reliable detection of small cracks.

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Rail Probe (WideScan)

This is a single probe that is capable of detecting orientated flaws in one pass of the rail head and producing a signal output that is related to the surface length and depth (size) of the flaw. The active face of the probe can easily be contoured to suit different rail head shape and indeed could be shaped to suit rolling stock applications.

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Low Frequency Sub-Surface Inspection

Reflection sub surface probes - for general purpose inspection of sub-surface corrosion and flaws. This probe has excellent depth penetration making it ideal for multi-layer inspections.

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High Frequency Surface Inspection

Absolute pencil probes are for general purpose inspection of surface breaking defects and metallurgy variations.

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Conductivity Measurements on WeldCheck+ and AeroCheck+

Conductivity measurements are required in the aircraft manufacturing and maintenance fields where they are used to verify proper alloy/temper, detect heat damaged components, to determine the purity of precious metals or to measure paint thickness.

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Dual Frequency Non-Ferrous Tube Inspection using Mixing or Absolute Differential

Mixing on a non-ferrous tube to minimise the effect of a ferrous support ring.

The conventional example of mixing is to use a non-ferrous tube and minimise the effect of a ferrous support ring, this test uses 21kHz on Channel 1 and 18kHz on Channel 2.

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Eddy Current Rotary Drive Hole Inspection

Eddy current rotary inspections of fastener holes and countersinks are performed routinely in the Aircraft Maintenance Industry and now the method is also being used
increasingly in the power generation industry for the inspection of bolt-holes on wind turbines.

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Eddy Current Weld Inspection

ln-Service Inspection of Coated Steel Welds Using Eddy-Current Techniques.

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