摘要
Vibrations or dither's are features of the PWM servo control system in their steady outputs. On the grounds of analyses and experiments of a PWM pneumatic servo control system, the paper puts forward four varieties of PWM modulation methods, and concludes on the relationship between dithers and the different methods, and then discusses the influence of friction to the dithers. Results from experiments regarding the dynamic and static responses on the given system support the theories presented.
静态输出中存在纹波是脉宽调制(PWM)气动伺服控制系统的特点,论文以对一种PWM气动伺服系统的分析和实验为基础,提出四种不同的调制方法,讨论了这些方法与纹波幅值的关系,分析了系统摩擦负载对纹波的影响的规律。对该系统所做的动态和静态实验结果与论文所得出的结论相符。
