Material Characterization and Electromagnetic Non-destructive Testing and Evaluation

Printed Magnetic Needle Probe (PMNP) for the internal characterization of laminated magnetic cores. The miniaturized spatial flux-free magnetic needle sensor enables embedded magnetic measurement (< 200 µm) and local hysteresis cycle characterization, supporting accurate simulation of electromagnetic devices and prediction of their performance. Applications include eddy current testing, magnetic needle probe (MNP), magnetic incremental permeability (MIP) and magnetic Barkhausen noise (MBN) methods for piping, aeronautics and electrical machinery.