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3.7.1 常数模块
在Simulink中,Constant模块用于创建实数或复数常量值信号,如图3-14所示。
双击模块,弹出如图3-15所示的“Block Parameters:Constant(模块参数)”对话框,在该对话框中可设置相关参数。该对话框包含两个选项卡,参数属性见表3-3。
![](https://epubservercos.yuewen.com/9B02D1/23446275609890206/epubprivate/OEBPS/Images/53_02.jpg?sign=1734489351-5KJB9efBzq9lKh5Lw60VwQM8shPnhHWr-0-bed36418d64e3d8286a063d511ec2529)
图3-14 常量模块
![](https://epubservercos.yuewen.com/9B02D1/23446275609890206/epubprivate/OEBPS/Images/53_03.jpg?sign=1734489351-2aNEpTr2cBT2U6M0lUwrMK0Z3PI1xTIm-0-b1032e40dbd3dd63c54ee1b69f977fcc)
图3-15 “Block Parameters:Constant(模块参数)”对话框
表3-3 Constant模块参数属性
![](https://epubservercos.yuewen.com/9B02D1/23446275609890206/epubprivate/OEBPS/Images/53_04.jpg?sign=1734489351-DJ5rwmFnrZ0Ie2wBK1cvZoPZ5F0dcpxY-0-d5d4fdd433cc917daaf1a148b30caa68)
(续)
![](https://epubservercos.yuewen.com/9B02D1/23446275609890206/epubprivate/OEBPS/Images/54_01.jpg?sign=1734489351-xiAJshtZiYUWrzPvd1HgLyUp8ZHTek7j-0-17301a752b05c3b78dcdcea4210b6f84)
在“Constant value(参数值)”文本框后单击按钮,选择“Create variable…(创建变量)”选项,弹出“Create New Data(创建新的数据)”对话框,如图3-16所示,在该对话框中设置数据“Name(名称)”“Value(值)”和“Location(路径)”。
![](https://epubservercos.yuewen.com/9B02D1/23446275609890206/epubprivate/OEBPS/Images/54_03.jpg?sign=1734489351-EB9uKzFla6eW4vvOAXXHRJuqS2zUAytt-0-6dc1c2b0e1474e2ed8b4629471ae0402)
图3-16 “Create New Data(创建新的数据)”对话框