基于LabVIEW 7.0 Express的测定化学电池E-t关系的虚拟仪器  

The Virtualhe Virtual Instrument of Testing Relation of Cell Potential and Temperature Based on Labview 7.0

作　　者：李元文[1] 李将渊[1] 王文彬[1] 刘赵荣[1] 蔡铎昌[1] 唐自龙[1] 

机构地区：[1]西华师范大学化学化工学院,四川南充637002

出　　处：《西华师范大学学报（自然科学版）》2005年第2期205-208,共4页Journal of China West Normal University(Natural Sciences)

基　　金：西华师范大学2002年重点应用科研项目资助(项目编号:200201).

摘　　要：研制了基于LabVIEW7.0Express的实时测定电池电动势(E)与温度(t)关系的化学虚拟仪器系统.运用集成运放器设计制作了电池电动势和温度的调理电路,通过PCI2002卡双通道同时采集,实现了E随t变化关系的跟踪测定,计算机实时绘出E-t曲线.用LabVIEWFunction模板中的相关函数编程,剔除野值,获得最佳拟合E-t函数表达式.应用结果表明:该系统操作简单、界面友好,实时数据显示和自动处理数据,避免了人工操作和数据处理的人为误差,结果令人满意.This paper introduces a chemical VI of testing the relation of cell potential and temperature. Applying the adjusting circuit of cell potential, the adjusting circuit of temperature and data acquiring board, this VI can real-time track and acquire the data of cell potential and temperature synchronously by two channels; protract E-t graph of potential and temperature by computer; get rid of the abnormal value though the function of LabVIEW and the function expression of E-t is given. The result of experiment indicates that the VI system operation is easy; the interface is friendly; data are real-time showing and processed automatically; the individual errors made by personal operation are avoided and the preciseness of data processing is greatly improved.

关 键 词：LABVIEW EXPRESS 化学电池 电池电动势 虚拟仪器系统 函数表达式 调理电路 设计制作 集成运放 实时测定 同时采集 变化关系 相关函数 系统操作 最佳拟合 处理数据 数据显示 人为误差 数据处理 人工操作 双通道 计算机 温度 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TP393.098[自动化与计算机技术—控制科学与工程]