电子天平称量精度探讨  

Discussion on Accuracy of Electronic Balance

作　　者：唐图强[1] 唐辉[2] 顾广胜[1] 田林怀[1] 王维华[1] 张剑[1] 

机构地区：[1]解放军第302医院,北京100039 [2]北京军区总医院,北京100700

出　　处：《医疗卫生装备》2009年第4期118-119,共2页Chinese Medical Equipment Journal

摘　　要：从电子天平的工作原理出发,探讨了影响电子天平称量精度的2个主要因素:重力加速度和温度变化。通过分析重力加速度与电子天平测量结果的相互因素,提出了内置标准砝码的补偿方法及不足,以及外附校准砝码的补偿方法。分析了温度变化对电子天平测量的影响,并提出了消除这些因素的方法。Two main impact factors on accuracy of electronic balance are discussed based on its working principle： acceleration of gravity and temperature variation. Through analysis of interacting variables in acceleration of gravity and electronic balance measurement results, the method of built-in standard weight compensation and its shortages are brought forward and attach the compensation method on weight calibration. The impacts on temperature change for the electronic balance measurement are analyzed, which proposes a method to eliminate these factors.

关 键 词：电子天平 称量精度 重力加速度 

分 类 号：TH715.116[机械工程—测试计量技术及仪器]