Weight-free self-calibration method and device for electromagnetic force balance weight detector

The invention relates to a counterweight-free self-calibration method and a counterweight-free self-calibration device for an electromagnetic force balance weight detector. The device consists of an electromagnetic force balance weight detector, a relay, a protection circuit, a clock module, a synchronous signal source, a multi-path voltage measurement module, a multi-path signal conditioning module, a multi-path data acquisition module, a data processing module, a temperature sensor and the like, and aims to realize automatic calibration of magnetic geometric factors of the detector. The calibration process comprises the steps of selecting a proper calibration point, enabling the coil to perform periodic reciprocating motion, and obtaining the induction voltage, the speed and the temperature signal according to the synchronously collected induction voltage, the speed and the temperature signal. And through mathematical analysis, calculating a magnetic geometric factor calibration value and temperature of the