Magnetic core loss detection system and calibration method thereof

The invention relates to a magnetic core loss detection system and a calibration method thereof. The magnetic core loss detection system comprises a main control computer, a function generator, a power amplifier and an oscilloscope, the main control computer is in communication connection with the function generator and the oscilloscope, and a signal sent by the function generator is applied to a magnetic core to be detected through the power amplifier; the oscilloscope is provided with a current probe and a voltage probe, the current probe is used for being connected to a primary winding of a magnetic core to be detected, and the voltage probe is used for being connected to a secondary winding of the magnetic core to be detected; and the thick-film non-inductive resistor is respectively connected with the current probe and the voltage probe so as to detect the phase error of the system. According to the invention, the magnetic core loss under the high-frequency condition can be accurately measured, accurate