摘要
介绍了一种基于Internet的网络虚拟实验平台而创建的新方法,采用LabVIEW7.1虚拟仪器开发环境设计出直观的操作界面,通过NI公司的PCI-6220多功能采集卡来实现硬件电路中被测量的采集和实验条目的选取。对于复杂的测试(如频率特性等)利用LabVIEW中的Multisim tools工具调用Multisim的仿真数据来实现,对实验平台的内容、实验的软/硬件设计方法及远程通信功能做了详细的介绍。实验结果证明了该设计方法具有良好的实验效果。
The new establishing method for network virtual experimental platform based on Internet is presented. By using LabVIEW7.1 virtual instrument development environment, the visual operation interface is designed. Through PCI-6220 multifunctional acquisition card, the data acquisition and selection of experimental items are implemented in hardware circuit. For complicated tests, for instance, frequency characteristics, etc. , they are implemented by adopting Multisim tools in LabVIEW to call simulation data of Multisim. The contents of the experimental platform, hardware and software design method as well as remote communication functions are introduced in detail. The results of experiment show that this design method offers excellent experimental effects.
出处
《自动化仪表》
CAS
2008年第3期8-11,共4页
Process Automation Instrumentation
基金
天津市重点科技攻关项目(编号:033186611)。
关键词
虚拟实验
虚拟仪器
负反馈放大电路
数据采集
频率特性
Virtual experiment Virtual instrument Negative feedback amplifying circuit Data acquisition Frequency characteristic