digital-oscilloscope

labview相关滤波，相关滤波提取特征频率下的原始信号(labview correlation filtering, correlation filter to extract the original signal characteristic frequency)

labview：常用编程框架介绍（文件资料）(LabVIEW: introduction to commonly used programming frameworks (file data))

labview实现 多条曲线的创建 数据保存在数组里面(labview create multi-curve data stored in the array inside)

虚拟仪器是现代测量技术和计算机技术相结合的产物，标志着自动测试与电子测试仪器领域技术发展的一个崭新方向． 随着信息技术和计算机技术的高速发展，数字信号处理作为一门新兴的学科，其重要性日益在各个领域的应用中体现出来。本文介绍了利用LabVIEW 图形编程语言进行虚拟仪器开发的方法，设计了一种基于PC机声卡的虚拟示波器，说明了虚拟仪器在现代测试领域中的重要地位以及其广阔的发展前景． 从某种意义上说，“软件就是仪器”。(Virtual instrument is the produce that merges the computer technology and measurement technique．It stands for a brand new development directory in the field of auto-measurement and electronic measurement。 With the rapid development of information technology and the computer technology, the digital signal processing takes an emerging discipline, its importance displays day by day in each domain application. This article introduces how to develop virtual instruments using graph programming language-LabVIEW ,designs a virtual signal displayer based on PC and explains the important part and wide development prospects of virtual instrument in modern measurement technique field． In a sense, “The software is an instrument”.)

Labview USB 设备通讯,玩转usb通讯(sFSDGVvfsbbszgvsbsbsb)

本设计采用了虚拟的NI-PCI 6221数据采集卡，利用虚拟仪器及其相关技术实现了多通道数据采集。该系统具有多路采集、实时显示、存储管理与密码保护等功能。(This design uses a virtual NI-PCI 6221 data acquisition card, using virtual instruments and related technologies to achieve multi-channel data acquisition. The system has many functions, such as multi-channel acquisition, real-time display, storage management and password protection.)

labview FTDI tools programme

TDK-lambda程控电源的labview控制代码，包括初始化，电源电压阈值，最大电流阈值，输出电压设置，输出电流设置，电压电流实时采集等功能的子Vi(TDK-lambda program control power LabVIEW control code, including initialization, power supply voltage threshold, maximum current threshold, output voltage setting, output current setting, voltage and current real-time acquisition and other functions of sub Vi.)

不规则边界单个圆的拟合功能，在原先图片的基础上画近似圆(Fitting function of single circle with irregular boundary)

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.)