微机测量系统中的抗干扰措施  

The Anti-interference Measures in Measuring System Based on Microcomputer

作　　者：洪小丽[1] 肖弦[1] 

机构地区：[1]长沙航空职业技术学院机械制造系,长沙410124

出　　处：《自动化仪表》2007年第7期55-57,60,共4页Process Automation Instrumentation

摘　　要：为了提高测量的可靠性,对测量系统进行抗干扰设计是必不可少的。将硬件抗干扰技术和软件抗干扰技术结合起来应用于基于微机的精密电感测微系统中。提出了通过从电路合理的布局布线和元器件的筛选以及软件的数字滤波和零点处理等措施来达到抗干扰的目的。最后通过实验表明了采用这些措施之后,测量仪器的可靠性和稳定性得到了很大的提高。In order to improve the measuring reliability, it is essential to design anti-interference measures in the measuring system. The hardware anti-interference techniques and software anti-interference techniques are combined to use in the precision inductive micrometer based on microcomputer. Some anti-interference techniques are introduced such as appropriate circuit layout and wiring, the component and device screening as well as digital filter and the zero point processing in software. The experiments show that the reliability and the stability of inductive micrometer are highly improved by using these measures.

关 键 词：硬件抗干扰 软件抗干扰 电感测微仪 

分 类 号：TH861[机械工程—仪器科学与技术]