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三浮陀螺仪输出轴采用有源磁悬浮,系统工作在分时控制模式下,控制变量为总周期和周期内加力占空比。加力电源类型的选取以及加力电压幅值的确定对电磁力的大小、磁悬浮的功耗有很大影响,进而影响陀螺温度场分布和陀螺精度。在研究了磁悬浮元件电磁特性之后,给出了确定加力电源的基于磁路分析的Flux电磁仿真法。分析给出直流、正弦和方波这三种电源的加力幅值范围为1.7V~2V,并结合试验确定1.8V的方波电压加力为最佳方案。实验表明采用该方法分析加力电压是有效的,同时节省了大量实验探索的时间。
Three-floating gyroscope output shaft with active magnetic levitation, the system works in time-sharing control mode, the control variable for the total cycle and period of the force duty cycle. The selection of the type of afterburner and the determination of the magnitude of the afterburner voltage greatly affect the magnitude of the electromagnetic force and the power consumption of the magnetic suspension, thereby affecting the temperature field distribution and the gyro precision of the gyro. After studying the electromagnetic characteristics of the magnetic levitation element, the Flux electromagnetic simulation method based on the magnetic circuit analysis to determine the afterburner is given. The analysis shows that the direct current, sine and square wave power of these three power supply range of 1.7V ~ 2V, combined with the test to determine the square wave voltage of 1.8V afterburner as the best solution. Experiments show that using this method to analyze afterburner voltage is effective, at the same time saving a lot of experimental exploration time.