position control - 09 04 - 副本

使用LabVIEW实现了DDS芯片AD9833的编程助手的功能，输入晶振频率和想要的输出频率即可得到控制字。很方便编程。(Using LabVIEW to implement the function of the DDS chip AD9833 s programming assistant, you can get the control word by typing the oscillator frequency and the desired output frequency. It s easy to program. )

说明：  此范例说明 了在LABVIEW平台下进行船舶运动可视化仿真平台(This example illustrates the ship motion visualization simulation platform in LABVIEW platform)

用LABVIEW实现保存数据的功能，使数据不会没有了(LABVIEW save data, so that data would not be without)

在laview利用动态链接库dll函数节点调用c语言实现加法运算(In LabVIEW, we use dynamic link library DLL function node to call C language to add operation.)

新建子VI（test2 oise_testing.vi），运用Express VI，实现噪声信号的采集、处理、显示和存储(The new sub VI (test2 oise_testing.vi) uses Express VI to realize the acquisition, processing, display and storage of noise signals)

几个练习使用Labview编程的产物，主要包括：1.正弦扫频信号发生器，可选择频率变化规律（不变、线性、指数变化）以及幅度变化规律（不变、线性、指数变化），还可以通过MathScript节点自定义频率、幅度变化规律； 2.声卡数据采集及频谱分析；3.会说话的小圆点；4.十六进制数布尔数组显示；5.在字符串中显示多种字体；6.钢琴键盘模拟(Several products by practicing Labview programming, including: 1 Sine sweep signal generator, selectable frequency variation (constant, linear, exponential change) and amplitude variation (constant, linear, exponential changes), you can also customize the frequency and amplitude variation through MathScript Node 2 sound card data acquisition and spectrum analysis 3 talking dots 4 hexadecimal to boolean array display 5 display a variety of fonts in the string 6. Piano keyboard simulation )

说明：  一个不错的自动化测试案例，可以查看编程框架和一些数据类型用法(A good automation test case)

说明：  可以帮忙LabVIEW界面，自适应屏幕分辨率(Screen adaptive resolution)

此例子主要讲述图像在labview下的模式匹配及图像分割！(This example focuses on image matching and image split mode under labview!)

说明：  labview与台达变频器通讯实现，采用的是Modbus-RTU格式(The communication between LabVIEW and transceiver is implemented in Modbus-RTU format.)