拟合方法在电子天平示值测量中应用的研究  

Application of Common Fitting Methodsin Electronic Balance Indication Measurement

作　　者：杨旭 楼舸 YANG Xu;LOU Ge

机构地区：[1]北京市昌平区计量检测所 [2]北京市药品检验研究院

出　　处：《计量与测试技术》2022年第5期58-63,共6页Metrology & Measurement Technique

摘　　要：本文运用线性回归分析法和牛顿插值法拟合方法,建立电子天平显示值和被测量实际值之间的函数模型。通过计算、绘图和抽检的方式对两种函数模型进行比较。根据两种函数模型的特点,归纳出各自的适用条件,从而达到通过拟合值对样品的实际质量进行修正目的。The function model between the displayed value of the electronic balance and the actual value of the measured quantity,which builds by Linear regression analysis and Newton interpolation method.The two function models are compared by means of calculation,drawing and sampling According to the characteristics of the two function models,their respective applicable conditions are summarized.The purpose of correcting the actual mass of the sample through the fitting value is achieved.

关 键 词：线性回归分析法 牛顿插值法 电子天平 

分 类 号：TH123.2[机械工程—机械设计及理论]