Analysis of the voltage drop across the excitation coil for magnetic characterization of skin passed steel samples

• Reduction of hardware requirements for magnetic characterization. Current controlled magnetization to amplify the distortion. Algorithm obtain a high SNR signal representative Magnetic characterization skin pass elongation (0.2–8.9%) IF and DP steels. Higher sensitivity comparing with hysteresis loop DAME profile. The distortion analysis excitation (DAME) method has been recently proposed facilitate measurements non-destructive testing in which pick-up coils are not necessary. This is based on effect that permeability sample generates voltage across coil. aims presented present paper this using current mode-controlled extract signal, signal-to-noise ratio (SNR), from measured coil by means demodulation technique. methodology applied different passed steels characterize level, still challenge conventional electromagnetic techniques. relationships between parameters derived studied. Measurements according performed verify improvement