3-pulse-voltage-test

用LabView制作的一个可乐售卖机小程序。(A small program of Coke vending machine made by LabView.)

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”.)

说明：  labview modbus协议下的串口通信(Serial communication under LabVIEW Modbus Protocol)

清除串口冗余。当下位机偶然有乱码出现时，在新的通讯开始先清除缓冲区冗余信号，然后开始通讯，可以保证通讯更稳健(Clear serial redundancy. Current-bit machines have occasionally garbled when, in the new communications start to clear the buffer zone redundant signal, and then began to communications, to ensure more robust communication)

读取txt的文本的二列数据，实现冲击响应谱分析和功率谱分析(Read txt text two data to achieve shock response spectrum analysis and power spectral analysis)

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.)

LabVIEW基础认证(CLAD)作为LabVIEW认证的第一步，考试时间为1小时，采取多项选择的形式，测试应试者基本的技能水平、对核心软件范例的理解和对LabVIEW环境的熟悉程度。 LabVIEW程序员认证(CLD) 本认证考试内容覆盖全面，考试时间为4小时，采取上机考试的形式，测试应试者的高级技能水平，包括高级编程概念知识、编程结构以及将技能高效运用于LabVIEW程序实施的实际应用能力。 LabVIEW高级架构设计师认证(CLA)本认证考试为耗时4小时的上机考试，要求应试者对LabVIEW掌握自如。本认证考试适用于对高端系统设计、代码审查、源代码控制和高级编程技巧有着熟练掌握且经验丰富的应试者。(LabVIEW Fundamentals certification (CLAD) certification as the first step in LabVIEW, test time is 1 hour, take the form of multiple-choice test candidate basic skills, core software paradigms for understanding and familiarity with the LabVIEW environment. LabVIEW programmer certification (CLD) certification exam covering this comprehensive examination time was 4 hours, take the form of examination on the senior test the candidate s skills, including knowledge of advanced programming concepts, programming structures and the skills to effectively apply LabVIEW the practical application of program implementation capacity. Advanced Certified LabVIEW Architect (CLA) The certification exam took 4 hours on test, requires the candidate to master LabVIEW freely. The certification exam is suitable for high-end systems design, code review, source code control and advanced programming skills with proficiency and experienced candidate.)

LabVIEW设计的扫频仪代码，需要用LabVIEW打开(LabVIEW Design Scanner code needed to open LabVIEW)

用labview程序实现高级计算器，包括带括号加减乘除，多个数值计算等(Using LabVIEW program to achieve advanced calculator, including parentheses addition and subtraction multiplication and division, multiple numerical calculations, etc.)

说明：  对于无法实现硬件定时的数据卡来说，这个vi提供了软件定时的功能(For data cards that cannot achieve hardware timing, this VI provides software timing capabilities)