Signal power spectrum based on FFT

用于实时温度的采集与检测，实现超限报警功能，使用labview语言实现功能(Real-time temperature acquisition and detection and Realization of Over-limit Alarm Function)

用labview实现振动信号采集,用于机械故障诊断，路形检测等(Realize vibration signal acquisition with labview for mechanical fault diagnosis, road shape detection)

说明：  实现串口 高速数据采集并通过波形显示。还有发送按键发送数据给下位机。(High speed data acquisition through serial port is realized and displayed by waveform.)

基于NI SCOPE的数据实时采集，并进行采集数据的写入保存。程序实现了采集原理，可以进行数据的后续处理(NI SCOPE-based real-time collection of data, and for the collection of data written to save it. Program for the acquisition principle, the follow-up data processing)

Labview PID控制实验程序..供学习者参考.(Labview PID Control Experimental procedure for the learner .. reference.)

说明：  这个包中包含各种子vi，可以完成对线阵CCDTD1304的数据采集功能(Can complete the data reading function of the line CCD)

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 )

这是一本书的部分例子，很经典的，希望大家喜欢(This is part of a book example, it is classic, I hope everyone likes)

运用Labview进行虚拟示波器串口设计的源码(The use of Labview virtual oscilloscope serial design source)

labview实现的上位机bootloaer，适配周立功CAN盒(PC bootloaer LabVIEW, ZLG CAN adapter box)