| LabVIEW环境下基于声卡的虚拟示波器软件设计 |
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| 引用本文： | 吕红英,吴先球,刘朝辉,陈俊芳,Lü Hongying,Wu Xianqiu,Liu Zhaohui,Chen Junfang.LabVIEW环境下基于声卡的虚拟示波器软件设计[J].计算机应用与软件,2007,24(3):61-64. |
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| 作者姓名： | 吕红英 吴先球 刘朝辉 陈俊芳 Lü Hongying Wu Xianqiu Liu Zhaohui Chen Junfang |
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| 作者单位： | 华南农业大学理学院,广东,广州,510642;华南师范大学物理与电信工程学院,广东,广州,510631;华南师范大学物理与电信工程学院,广东,广州,510631 |
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| 摘 要： | 基于计算机声卡的虚拟仪器成本低、通用性强,在对采样频率要求不高的情况下,可以用声卡取代数据采集卡进行采样和输出.利用虚拟仪器开发工具软件LabVIEW及其数字声音记录节点,研制出基于声卡的虚拟双踪数字存储示波器,其功能和界面都与真实示波器相同.重点阐述了数据采集、触发控制、显示控制几个主模块的设计方法.
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| 关 键 词： | 虚拟仪器 声卡 LabVIEW 虚拟示波器 |
| 修稿时间： | 2004-10-25 |
SOFTWARE DESIGN OF VIRTUAL OSCILLOSCOPE BASED ON SOUND CARD UNDER LABVIEW |
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| Wu Xianqiu,Liu Zhaohui,Chen Junfang.SOFTWARE DESIGN OF VIRTUAL OSCILLOSCOPE BASED ON SOUND CARD UNDER LABVIEW[J].Computer Applications and Software,2007,24(3):61-64. |
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| Authors: | Wu Xianqiu Liu Zhaohui Chen Junfang |
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| Affiliation: | 1.College of Sciences, South China Agricultural University, Gnangzhou Gnangdong 510642, China ;2 . School of Physics and Telecommunication Engineering, South China Normal University, Gnangzhou Gnangdong 510631, China |
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| Abstract: | The vitrual instrument based on PC sound card has the virtues of low cost and powerful generality, and the sound card can take the place of the plug-in data-acquisition board on low-frequency condition. In this article, the virtual double-traced storage oscilloscope based on sound card, whose function and interface were designed according to the actual oscilloscope, was developed using virtual instrument software LabVIEW and its digital sound record nodes. The designs for several main modules such as data acquisition, triggering control and display control were chiefly expounded. |
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| Keywords: | Virtual instrument Sound card LabVIEW Virtual oscilloscope |
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