PXI板卡接地干扰及解决方案探讨  

Discussion on PXI Board Grounding Interference and Solution

作　　者：袁慧秀[1] 刘如金 梁琼崇[2] Yuan Hui-xiu;Liu Ru-jin;Liang Qiong-chong(China Helicopter Design and Research Institute,Jiangxi Jingdezhen 333001;The Fifth Electronics Research Institute of Ministry of Information Industry,Guangdong Guangzhou 511370)

机构地区：[1]中国直升机设计研究所通用技术部,江西景德镇333001 [2]工业和信息化部电子第五研究所,广东广州511370

出　　处：《电子质量》2021年第3期56-58,61,共4页Electronics Quality

摘　　要：PXI是近年来发展迅速的基于PC的测量和自动化平台,它继承了PCI和PCIe总线系统诸多优点。在PXI板卡校准中常常遇到超差问题,有时并非仪器本身而是各种干扰引起的,特别是接地处理不当问题。该文从校准实例出发,分析了PXI板卡超差的起因,并提出了接地解决方案。PXI is a PC based measurement and automation platform which has developed rapidly in recent years.It inherits many advantages of PCI and PCI bus system.In the calibration of PXI board,we often encounter the problem of out of tolerance,sometimes it is not caused by the instrument itself,but by various kinds of interference,especially the improper handling of grounding.Based on the calibration example,this paper analyzes the cause of PXI board out of tolerance,and puts forward the grounding solution.

关 键 词：PXI 校准 干扰 接地 

分 类 号：TN492[电子电信—微电子学与固体电子学] TP274[自动化与计算机技术—检测技术与自动化装置]