6ES7-658-1EX16-2YA5
6ES7-658-1EX16-2YA5
6ES7-658-1EX16-2YA5
自动平衡式数字式显示仪表中既有连续信号如输入电压、 放大器的输入、 输出信号, 电动机的转速和角位移等; 也有数字信号如 A /D的输出和光电编码器的输出。由此可见, 自动平衡式数字式显示仪表是一种计算机控制的随动系统。微处理器的作用是比对求差、 数字信号处理和数字校正。与编码器的运行速度和输入信号的变化速度相比, 微处理器具有很快的运算速度, 可以不必考虑系统的延时, 采用连续信号的模型就可以足够准确地描述自动平衡式数字式显示仪表。图 1所示是自动平衡式数字式显示仪表模型。
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