calculator

用LabVIEW编制一个完整应用软件，完成以下功能： 1、产生一个正弦波，叠加一个噪声信号，从界面上可以调整噪声和信号的幅度、频率等参数，此信号作为后续分析的信号源； 2、显示信号的时域波形，点击按钮可以显示信号的幅度谱、功率谱 3、图形上可以显示光标，具有峰值跟踪功能，同时将峰值频率、幅度显示在界面上。 4、点击按钮可以计算显示信号的失真度（THD）、信噪比（SNR）、各次谐波的频率和幅度；(Preparation of a complete application using LabVIEW software, perform the following functions: 1, generates a sine wave, the superposition of a noise signal, the interface can be adjusted from the noise and the signal amplitude, frequency and other parameters, this signal as a follow-up analysis of the signal source 2. time-domain signal waveform display, click the button to display the signal amplitude spectrum, power spectrum 3, you can display a cursor on the graph, with a peak tracking, while the peak frequency, amplitude displayed on the screen. 4, click the button to display the calculated distortion (THD) signal to noise ratio (SNR), each harmonic frequency and amplitude )

说明：  labview通讯案例，多线程一对多，实现多线程通讯(labview review eefefeffffffff adkadaapadadkada)

傅里叶变换 LabVIEW的源码 希望对广大学习有些帮助 (Fourier transform LabVIEW source code hope the majority of learning some help)

对单个边缘规则的近圆形图像进行拟合，并在原图像的基础上画近似圆(Fitting a single edge regular near-circular image and drawing an approximate circle on the basis of the original image)

控制三台电机，并完成转矩给定的分配，记录转速(Control three motors and complete the assignment given torque, speed record)

说明：  虚拟仪器的网络控制 1）、设计一个程序控制8个外设小灯的点亮方式，要求两种方式A:每个小灯间隔时间T，依次亮，时间T可调，并循环。B：先1.3.5.7.9亮隔时间T，2.4.6.8.10亮，并循环，T可调。 2）、要求主面板与硬件的8个小灯同步。 3）、通过网络在另一台计算机上控制此程序的运行（利用LabVIEW的DateSocket技术）((Network control of virtual instruments 1), design a program to control eight peripheral lights lit the way, the requirements in two ways A: each light interval T, followed by bright, time T adjustable, and circulation. B: first 1.3.5.7.9 bright every time T, 2.4.6.8.10 light, and circulating T-adjustable. 2), requires eight small lights of the main panel and hardware synchronization. 3), through the network control of this program running on another computer (using the LabVIEW DateSocket technology)))

说明：  LabVIEW CompactRIO FPGA开发指南，很有用，希望能有帮助(LabVIEW CompactRIO FPGA)

采用虚拟仪器LabWindows/CVI软件平台开发了基于PCI-6221多功能数据采集卡的实时频谱分析仪。(Virtual instrument LabWindows/CVI software platform based on real-time spectrum PCI-6221 multifunction data acquisition card analyzer.)

LabVIEW虚拟示波器程序，采用ART USB2831数据采集卡，具有多路数据采集存储和回放功能(It s a program of virtual oscilloscope.The environment is LabVIEW 2010.Using ART USB2831 DAQ.)

基于PC硬件信息产生序列号的软件加密技术详细文档,提供动态链接库和文档(PC-based hardware information generated sequence numbers detailed documentation software encryption technology to provide dynamic link libraries and documentation)