Principio de trabajo del detector de fuga de flujo magnético

The working principle of magnetic flux leakage detector is based on the fact that after the ferromagnetic material is magnetized, a leakage magnetic field is formed on its surface due to defects on the surface or near the surface of the test piece. When the ferromagnetic material is magnetized, if there are defects on its surface or near the surface, the magnetic permeability will change, causing the magnetic flux to be distorsionado, y parte del flujo magnético se filtrará en el espacio en la superficie del material, formando un campo magnético de fuga .