包络检波

摘要：以实际工程为背景，介绍了在I丑bwindows／CVI环境下，基于ActiveX技术访问Microsoft Excel 2003的方法，以及创建 自动化仪器驱动器的方法。详细阐述了访问Excel具体函数的使用方法，实现了对Excel的访问。通过该工程实例，说明 了本方法具有重要的工程实用价值。(Abstract：The approach of accessing to Microsoft Excel 2003 based on ActiveX technology in LabWindows／CVI environment is intrt~ uced，in 8cN~ence，the establishments of driving scheme for automatic instruments are presented in detail．To realize the access to Excel，the operations of accessing to the real functions are intensively illustrated as wel1．Th e experiments in the real environment demonstrate that this method illustrated here is of great value for practical applications．)

this code get analog input from myRIO and show its graph

说明：  对于labview编程者来说，需要解析hex文件需要额外翻查许多资料，本程序为labview程序，用来解析hex文件(labview program anlysis hex file)

自功率谱是分析非平稳信号频谱的重要手段。对于非平稳信号来说，利用自功率谱分析能够更容易找到信号中能量聚集区域，对信号中的频率分布有更好的了解。本文件中将其制作成独立子VI方便程序直接调用。(Self power spectrum is an important method to analyze the spectrum of non-stationary signals. For non-stationary signals, it is easier to find the energy accumulation region in the signal by using self power spectrum analysis, and better understand the frequency distribution in the signal. This document will be made into an independent sub VI convenience program to call directly.)

对LabVIEW进行二次开发，对信号进行聚合经验模态分解。(The LabVIEW is developed two times, and the signal is aggregated by empirical mode decomposition.)

说明：  和宇电温控表通过RS485通信，可读取设置宇电温控表参数以及实时读取(Read and set the parameters of Yudian temperature control meter and read in real time)

产生0到100kd的方波。正玄波，三角波，锯齿波和输出为0到10V的电压的信号发生器(0 to 100kd produce a square wave. Sine wave, triangle wave, sawtooth wave and the output voltage from 0 to 10V signal generator)

1）本程序为高压电气设备局部放电领域中的信号源软件模拟程序。2）本人亲自编写。实验室一直在用。3）可模拟各种类型的放电信号。4）算法此处就不提供了，否则过于泄密了。(A) the procedures for the high-voltage electrical equipment in the field of partial discharge source software simulation program. 2) I personally prepared. Laboratory has been in use. 3) to simulate various types of discharge signal. 4) algorithm is not provided here, otherwise too leaked it.)

虚拟仪器 采用数据采集卡与电脑连接，能实现各种的虚拟仪器功能，界面非常丰富美观（大部分是自己做的），与传感器配合功能强大。(Virtual instrument Using data acquisition card and computer connection, can achieve the function of all kinds of virtual instrument, the interface is very rich and beautiful (mostly) he has done, and sensor with powerful functions.)

虚拟仪器Labview：FFT、采样、加窗、互相关分析仪、滤波器、谱分析、随机信号分析仪、信号发生器.exe自谱与自相关分析.exe的可执行程序(FFT, sampling, windowing, cross-correlation analysis instrument, filter, spectrum analysis, the random signal analyzer, signal generator exe autospectrum autocorrelation analysis exe executable program)