Okuma E4809-045-036-A（原装）

Okuma E4809-045-036-A
Okuma E4809-045-036-A
Okuma E4809-045-036-A


现场的模拟量信号经A /D转换后变为数字量信号,存人PLC中,再利用数字滤波程序对其进行处理,滤去噪声信号从而获得所需的有用信号。工程上的数字滤波方法很多,常用的有:平均值滤波法、中间值滤波法、加权滤波、滑动滤波法等。
控制系统中,硬件上的抗干扰设计是基础也是抑制干扰的根本的措施。除此之外,还可以在软件设计上,可以采用数字滤波和软件容错等经济有效的方法,进一步提高系统的可靠性。

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