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DSTD108P(3BSE018333R1）进口
- 品牌：ABB
- 规格：DSTD108P(3BSE018333R1
- 材质：DSTD108P(3BSE018333R1
- 产地：瑞士
- 更新时间：2014-09-10
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吴金孝 先生
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DSTD108P(3BSE018333R1
DSTD108P(3BSE018333R1
DSTD108P(3BSE018333R1
一个水房要保持的水位，输入反馈为水池底部的一个压力传感器，输出装置为一个阀门开关0-270开度，假定阀门的另一端一直有水，这样就组成一个简单的PID回路：
【输入反馈】压力传感器【0-10Bar，4-20mA】
【输出 】阀门 【0-270度，1-10V 】
【设定值 】要求水深5米
通过上述可以看出来，输入反馈，输出，设定值单位都不一样，如何解决呢？
PID里是这样解决的：将输入反馈，输出，设定值都除以他们的大范围，得到一个0-1之间的数，需要输出的时候再将0-1之间的数乘以大范围就可以了
当然上述的设定值与反馈值不是一个单位，需要将设定值5米转换成相应的Bar单位如3.5Bar，将3.5Bar/大压力10Bar=0.35 这就是设定值；
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