Custom Eddy Current Array (ECA) Probes:
Our 3-Step Approach

Eddy current is a precise science which delivers the best results when the various probe parameters are optimized. For that reason, eddy current is often described as an “applications” market, and probe designs are often customized to the meet the most stringent inspection requirements.


Eddyfi has developed its business model and capabilities around these needs and requirements. Eddyfi’s expertise, engineering and flexible manufacturing environment allow the delivery of cost-effective, high-performance, and applications-specific ECT and ECA probes.

1. Exchange of Information

  • Application description
    • Material to inspect
    • Surface condition
    • Geometry
    • Target defects
    • Constraints and limitations
  • CAD drawing of the part to be inspected (if available)
  • For new projects, representative mock-up (material, dimensions)
    • With artificial flaws that represent target defects
    • With a detailed location of all machined flaws.
  • Scanner and controller (if applicable).

     

2. Eddy Current Solution Design

ECT parameters are determined from theoretical and empirical data and calculations. If applicable, the parameters are then optimized by testing the mock-up with various prototype probes (patches). This allows optimal design of the ECT solution for the current application:

  • Coil size
  • Impedance
  • Configuration and orientation of the array
  • Excitation mode
  • Optimal frequency
  • Potential adjustments to the software (filtering, scaling, etc.)

     

3. Probe Housing Design

The probe housing can be made in different shapes and sizes to better conform to the contour of the part under inspection. This step might require mechanical testing and validations on the mock–up. These tests aim to minimize lift-off and wear, and maximize scanner compatibility (if applicable), ergonomics, and ease of use.

Eddyfi will then conclude on the ECT and mechanical configurations that are most appropriate for the current application. The probe can then be manufactured and delivered with the appropriate software setups for guaranteed high-performance field deployment.