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1、 舵机内部结构
舵机内部包括了一个小型直流马达;一组变速齿轮组;一个反馈可调电位器;及一块电子控制板。其中,高速转动的直流马达提供了原始动力,带动变速(减速)齿轮组,使之产生高扭力的输出,齿轮组的变速比愈大,舵机的输出扭力也愈大,也就是说越能承受更大的重量,但转动的速度也愈低 。
舵机内部结构图
2、舵机的工作原理
舵机是一个典型闭环反馈系统,其原理可由下图表示: