Eddy Current

Practical Physics has over 12 years of experience designing eddy current probes for steam generator inspection, heat treat case depth, cracks, and corrosion. Designs have been implemented in aerospace, power generation, automotive, and other industries.

Additionally, probes have been designed and deployed in the petrochemical and balance of plant markets as well. These probes include BS, CBS, and RFT (remote field testing).

Other projects have included custom hall encoders for harse environments, rotating transformers, finite element modeling of electromagnetic systems for NDT feasibility.

Example 1: Finite element prediction of the effect of changing the core diameter of a solenoid while maintaining the coil ID and the core material properties.

eddy current spot probe

Simple ferrite core solenoid with flux lines in the model volume and eddy current density shown in blue region.

differential probe for case depth measurement

ID/OD Differential Driver Pickup arrangement useful in hardness testing. Flux line are shown in the model volume and the eddy current density is shown in the blue region

bobbin probe for steam generator and balance of plant tubing inspection

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