文档介绍：摘要
虚拟仪器是现代计算机软硬件技术飞速发展的产物,它正逐步取代传统的电子仪器,是现代电工电子测量仪器的发展方向。虚拟仪器主要由数据采集、数据分析处理、数据输出与显示三部分模块组成。
本文是以美国NI公司的虚拟仪器开发环境labview设计的虚拟示波器,介绍虚拟示波器的实现过程。该仪器是用基于图形化编程语言labview而编写的, 本虚拟示波器涉及主要功能包括:双通道信号输入、触发控制、通道控制、时基控制、波形显示、参数自测量等。本虚拟示波器的数据采集的功能与普通示波器一样;波形显示模式:通道 A或B 、A+B及A-B等。经测试,本虚拟示波器可实现数据采集,并可对采集信号进行运算。
关键词: 虚拟仪器; 示波器; labview; 波形显示; 双通道信号输入
Abstract
The hypothesized instrument is the puter software and hardware technology rapid development product, it is substituting for traditional gradually the electronic instrumentation, is the modern electrician electronic surveying instrument development direction. The hypothesized instrument mainly by the data acquisition, data analysis processing, the data output and demonstrated three parts of pose.
This article using American NI Corporation's hypothesized instrument development environment LabVIEW, the introduction hypothesized oscilloscope realization process. This instrument is with, this hypothesized oscilloscope piles based on presente in figures and diagrams programming language LabVIEW8i involves the main function to include: Double channel signal input, triggering control, channel control, time base control, profile demonstration, parameter from survey and so on. This hypothesized oscilloscope data acquisition function and the ordinary oscilloscope are same; Profile demonstration pattern: Channel A or B, A+B and A-B and so on. Been tested. This virtual oscilloscope Can be achieved Data acquisition,And can puting for Signal acquisition
Key word: Virtual instrument;Oscilloscope; LabVIEW;Waveform display;Dual-channel signal input
目录
虚拟仪器基本介绍……………………………1
虚拟仪器介绍……………………………………………1
虚拟仪器的基本概述………………………………….3
虚拟仪器的构成……………………………………….3
虚拟仪器的优点……………………………………….4
虚拟仪器的发展现状和方向…………………………4
虚拟仪器的现状……………………………………….4
虚拟仪器的发展及特点……………………………….5
虚拟仪器的展望……………………………………….6
虚拟示波器的介绍……………………………………8
什么是虚拟示波器……………………………………………….8
虚拟示波器的软件和硬件介绍…………………………………8
软件开发平台……………………………………………10
labview的操作模板……………………………………………11
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