display

Labview基于声卡的频谱分析 声卡采集声音数据,显示其波形,通过滤波器和加窗处理进行功率谱分析(Labview based sound card spectrum analysis Sound card data collection, display its waveform, through the filter and window processing power spectrum analysis)

一个上位机测控软件，采样Labview2011编写，主要功能的和下位机通信，向下位机下发控制指令，并实时显示处理下位机上传的采集数据。(A PC control software, sampling Labview 2011 write, and communicate the main function of the lower down-bit machine control commands issued, and real-time data acquisition display processing lower computer to upload.)

风电机组轴承的状态监测和故障诊断与运行维护(Wind turbine bearing condition monitoring and fault diagnosis and operation and maintenance)

在波形Graph显件上用两种不同颜色显示一条正弦曲线和一条余弦曲线，每 条曲线长度为128个点，其中正弦曲线的x0 =0，△x=1；余弦曲线的x0 =2， △x=5。并利用属性节点通过前面板控件改变每条曲线的颜色。 ①一个周期128点。 ②改变颜色一定要先选择曲线，然后再改变颜色。(A sine curve and a cosine curve are displayed in two different colors on the waveform Graph display. The length of the bar curve is 128 points, where the sine curve x0 =0, Delta x=1, the cosine curve x0 =2, Delta x=5. And use the attribute node to change the color of each curve through the front panel control. One cycle is 128 points. Change the color must first choose the curve, then change the color.)

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

本附件为一个LABVIEW SQL数据库服务器示例,包括连接、添加、删除、更新等操作。(SQL database server example)

实现了Labview中格式为TDMS的数据文件的读取，并能够在波形图表中显示数据文件中记录的波形。(Achieved in Labview TDMS data file format is read, and the ability to display data in the waveform chart waveform records in the file.)

主要运用labview的编程功能完成对信号的功率谱分析，从而更好的理解功率谱。(The main use labview programming features to complete the signal power spectrum analysis to better understand the power spectrum.)

说明：  Scripts for up sampling and down sampling

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.)