Method for measuring magnetic hysteresis loop of magnetic core material

摘要: The invention relates to a method for measuring magnetic hysteresis loop of core material. provides device the material is measured by comprising steps of: (1), calculating initial voltage or frequency required demagnetizing, and then, demagnetizing part; (2), after ended, enabling direct-current source charge capacitance an RLC oscillation circuit, delaying till stably broken; (3), inductance, resistance circuit generate damped oscillation; (4), acquiring data sensorand current sensor used part through acquisition card, filtering processing, field intensityH at each time corresponding flux density B, obtaining set loops part, connecting vertexes various hysteresisloops, so that basic magnetizing curve obtained. can measure without high-power excitation source, obtains same time.