基于JKU12DAS 双路差动输入示波器设计(CVI)  

Design of Double-channel Differential Input Oscilloscope Based on JKU12DAS(CVI)

作　　者：丁舒 Shu Ding(Chengdu Airlines Electronic Technology Co.,Ltd.,Chengdu,Sichuan,611430,China)

机构地区：[1]民航成都电子技术有限责任公司,四川成都611430

出　　处：《工程技术与管理（新加坡）》2019年第10期42-57,共16页Engineering Technology & Management

摘　　要：虚拟仪器是在计算机的软件和硬件基础上搭建的测试平台,它由计算机、应用软件和硬件三部分组成,通过虚拟仪器软件开发平台将计算机硬件资源与仪器硬件有机地融为一体,把计算机强大的数据处理能力和仪器硬件的测量、控制能力结合在一起,通过软件实现对数据的显示、存储以及分析处理。本文给出了一种用虚拟仪器方式实现的虚拟示波器的设计方案。硬件采用LabjackU12数据采集卡,实现双路差动输入;软件采用LabWindows/CVI开发环境,实现在PC机上的虚拟示波器仪器面板控制及相应程序设计。最终调试结果为可以实现正确的数据采集,可通过控制面板上的按钮正确实现波形的显示、通道选择、水平时基、垂直灵敏度、位移、两通道波形相加减等功能。完成的设计可在一般场合代替传统的示波器,用于进行简单的波形信号检测。Virtual instrument is based on computer hardware and software test platform,which is consists of computer,application software and hardware,the computer hardware resources and instrument hardware organically integrated by the virtual instrument software development platform,the powerful data processing ability combine with computer hardware instrument,realization of the data display,storage and analysis by the software.This paper gives a way of using virtual instrument of virtual oscilloscope design scheme.the major hardware is LabjackU12 data acquisition card,to realize the two-way differential input;the major software is LabWindows/CVI development environment,to realize the PC virtual oscilloscope instrument panel control and corresponding program design.The final debugging results is achieve correct data acquisition,can be achieved right waveform display,channel selection,horizontal time-base,sensitivity,vertical displacement and two channel wave add and subtract,and other functions by button on the control panel.the design can complete the general situations instead of traditional oscilloscope,such as simple waveform signal detection.

关 键 词：虚拟仪器 数据采集卡 示波器 LABWINDOWS/CVI 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]