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Gloved hands holding an electromagnetic yoke against a steel surface during magnetic particle inspection, with the test area covered in detection medium.

NDT techniques

Magnetic particle
testing

Where the field breaks, a defect shows

Magnetic particle testing, also known as magnetoscopy or magnetic particle inspection (MPI), is a non-destructive testing (NDT) technique used to detect surface and subsurface defects in ferromagnetic materials. It is based on the principle of magnetic induction and uses magnetic particles to reveal variations in the magnetic field caused by imperfections. For over 45 years, we have been performing NDT both nationally and internationally.

The advantages of
magnetoscopy in NDT

Sensitivity to superficial and internal defects

Magnetic particle inspection is sensitive to surface and sub-surface defects in ferromagnetic components, making it suitable for detecting flaws in material structure at different depths.

Quick and easy execution

Magnetic particle inspection can be performed relatively quickly, especially for the detection of surface defects making it suitable for large-scale inspections or on mass-produced components.

Versatility of materials

The technique can be used on a wide range of ferromagnetic materials, including steels, cast iron and iron alloys.

Defect localization

Magnetic particle inspection allows the location of defects to be precisely identified, facilitating evaluation and marking for future repairs.

Easy viewing of results

The application of magnetic particles generates a visible indication pattern, making it easier for operators to interpret the results.

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Steel parts to check?

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