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.
出处
《医疗卫生装备》
CAS
2009年第4期118-119,共2页
Chinese Medical Equipment Journal
关键词
电子天平
称量精度
重力加速度
electronic balance
weighing accuracy
acceleration of gravity
