虚拟仪器在气体微流量计测控系统中的应用  

Application of virtual instrumentation in measurement/control system of gas micro-flowmeter

作　　者：宋瑞海[1] 成永军[1] 赵澜[1] 张涤新[1] 

机构地区：[1]兰州物理研究所,甘肃兰州730000

出　　处：《真空》2010年第5期68-71,共4页Vacuum

摘　　要：采用虚拟仪器技术开发了一个气体压力的自动测控系统,并用于高精度气体微流量计。本文详细介绍了高精度气体流量计压力系统的工作原理,及其压力测控系统的硬件组成和软件设计。系统的硬件部分使用台湾研华公司的PCI-1610采集卡和美国NI公司的IEEE-488数据采集卡,软件部分采用NI公司的LabVIEW图形化编程语言创建,实现了压力的测量与控制以及数据的自动保存。该系统具有界面友好、人机交互性强、编程简单、操作方便、控制效果好等优点。A gas pressure auto-measurement with control system based on virtual instrumentation was developed and applied to a high-precision gas micro-flowmeter.The working principle of the pressure measurement/control system of the microflowmeter is described in detail,as well as the hardware configuration and software design.The hardwares used are the PCI-1610 serial card from Taiwan Advantech Company and IEEE-488 data acquisition card from NI,and the software is programmed with the graphical language LabVIEW from American NI Company,thus implementing the pressure measurement/ control and automatic data storage.The system has such advantages as friendly interface,smooth man-machine interaction,easy to programming and favorable controlling effect.

关 键 词：气体微流量计 压力 虚拟仪器 LABVIEW 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]