Excite
Apply a controlled alternating magnetic field across selected frequencies.
PriMagnet EM technology
Read the magnetic response. Understand the steel.
A multi-frequency electromagnetic sensing platform is being developed to connect non-destructive signals with steel texture, microstructure, thermal history and forming behaviour.
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The measurement idea
Material change appears in the signal.
An alternating magnetic field interacts with conductive, magnetic steel. The measured response changes with permeability, conductivity, geometry, frequency, lift-off and material state.
Useful characterisation comes from controlling these influences, comparing against suitable reference evidence and building an interpretation model around the application.
PermeabilityConductivityFrequency responseAnisotropy
From field to finding
A controlled evidence chain.
Measure
Capture impedance, phase or derived features with controlled geometry and lift-off.
Correlate
Compare the signal with texture, microstructure, thermal or mechanical reference data.
Interpret
Build a decision-focused model and test its limits on relevant material variation.
Research and development areas
One platform, several steel questions.
Steel texture, anisotropy and r-value
Directional electromagnetic measurements linked with crystallographic texture and sheet-forming behaviour.
Thermally driven microstructural change
Electromagnetic monitoring of recovery, recrystallisation and phase transformation during controlled thermal cycles.
Weld and interface assessment
Exploring electromagnetic sensitivity to weld geometry, local metallurgical change and process variation.
Measurement systems and modelling
Integrating multi-frequency sensing, controlled fixtures, reference evidence and magnetic simulation.
Current patented research
Non-destructive steel formability assessment
Directional electromagnetic measurements are being developed to estimate steel-sheet r-value and support faster assessment of forming behaviour. The method remains under continued development and validation.
Electromagnetic anisotropy formulation and non-destructive estimation of r-valueUK patent application No. 2604679.7 · Research-stage technologyView the research foundation ↗
Development status
Research-led, honest about readiness.
The EM sensing platform and r-value method remain under development and validation. PriMagnet currently offers feasibility work, collaborative R&D, test-method development, simulation and application studies rather than an off-the-shelf production claim.
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