一种高精度多功能校准源电阻突变问题的处理  

Approach of resistance mutation about a kind of high accuracy Multi-Function Calibrator

作　　者：庄双勇[1] 吕燕[1] 何睿[1] 

机构地区：[1]北京航天飞行控制中心,北京100094

出　　处：《电子测量技术》2015年第2期37-41,共5页Electronic Measurement Technology

摘　　要：多功能校准源5720A是一台能输出直流电阻、直流电压、直流电流、交流电压、交流电流5项参数的高精度测量标准。针对1台多功能校准源5720A发生电阻突变的问题,通过原器校准对其进行校准,采用校准核查的方法对其电阻输出的稳定性进行考核,采用检定法和比对法两种方法对多功能校准源的技术指标进行验证。结果表明,5720A的电阻技术指标合格、输出稳定性符号要求,证明该处理方法实用可行,不仅大大节约了维修费用,而且还最大限度缩短维修周期,可对解决此类仪器设备电阻突变及其他故障问题提供参考。Multi-function calibrator 5720 Ais a high accuracy test standard,which can output DC resistance,DC voltage,DC current,AC voltage,AC current.According to the problem of Resistance Mutation about a 5720 A,this article gives a three standards calibration method to calibrate the multi-function calibrator,gives calibration check method to check its stability,gives verification and comparison two methods to verify its specifications.As a result,the calibrator＇s specification is qualified,and its stability is good.From this,we can proves that this method is feasible,which can give a resolution reference about such problems and others.

关 键 词：多功能校准源 电阻突变 原器校准 指标验证 

分 类 号：TH71[机械工程—测试计量技术及仪器]