基于VB的线性电位器测试平台的设计

基于计算机平台的测试系统具有存储容量大、测试速度快等优点,因此基于VB的线性电位器关键参数的自动测试将成为一种新的研发趋势。本文提出一种基于VB技术的电位器测试平台的设计方案,使用户通过可视化界面操作测试系统,迅速获取阻值规律等关键测试值,并及时显示或者打印相应曲线。其中下位机主要由DS89C450、MX674A、SM202等元器件构成硬件电路,软件采用C语言和汇编语言混合编程;上位机采用VB编程,形成可视化界面,方便操作。本文给出一个应用实例,实验运行效果表明,该测试平台具有良好实时性和稳定性,具有实际应用与推广价值。

Design of Linear Potentiometer Testing System Based on VB

The test system has the advantage of large storage capacity and fast speed based on the computer system,thus automatic test of key parameters of linear potentiometer based on VB will become a new research trend.This paper puts forward a design scheme for potentiometer test system based on VB technology.The user,through visual interface testing platform,can quickly access to key test resistance law,and timely display or print corresponding curve.The test equipment hardware is constituted of the hardware circuit by DS89C450,MX674A,and SM202 components,and its software uses C and assembly programming languages.The test system uses a visual interface by VB.NET programming in PC,and easy to operate.An application example is given;the experiment result shows that this platform has good performance,stability,and the practical and promotion value.