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为实现所设计的空中三维大气电场传感器的屏蔽转子稳定可靠的旋转,提出了以意法半导体公司第二代ARM微控制器STM32F103RC为核心集成电路的MCU(Micro Control Unit)电机控制系统。该系统由无刷直流电机构成的动力驱动系统、微控制器构成的中央控制系统、无线收发装置构成的无线收发系统,以及三维电场传感器、电子罗盘、陀螺仪、GPS等传感器构成的传感器测量系统组成。采用脉冲宽度调制(PWM)信号控制无刷直流电机驱动模块,通过编程模拟相应的旋转速度。实验结果表明,空中三维大气电场传感器的屏蔽转子能实现稳定旋转。
In order to realize the stable and reliable rotation of shielded rotor of airborne three-dimensional atmospheric electric field sensor, a Micro Control Unit (MCU) motor control system based on STM32F103RC, the second generation ARM microcontroller of STMicroelectronics, is proposed. The system consists of a power drive system composed of a brushless DC motor, a central control system composed of a microcontroller, a wireless transceiver system composed of a wireless transceiver, and a sensor measuring system composed of a three-dimensional electric field sensor, an electronic compass, a gyroscope and a GPS sensor composition. The pulse width modulation (PWM) signal is used to control the brushless DC motor drive module, and the corresponding rotation speed is simulated through programming. The experimental results show that the shielding rotor of airborne three-dimensional atmospheric electric field sensor can achieve stable rotation.