用等偏法与Spss研究灵敏电流计的特性  

Calibrate Sensitivity and Internal Resistance of Sensitive Galvanometer by Isogonic Method and Spss

作　　者：严箫 王新春[1] 岳开华[1] 祝飞霞[1] 司明真 

机构地区：[1]楚雄师范学院,云南楚雄675000

出　　处：《大学物理实验》2014年第2期65-68,共4页Physical Experiment of College

基　　金：国家特色专业项目资助(编号:12467)

摘　　要：针对测试灵敏电流计特性的实验装置,以灵敏电流计的灵敏度及内阻为研究对象,用等偏法测量实验数据,引入Spss的曲线估计功能分析实验数据,得到电阻复合量与电阻比、光标偏转格数、电压的综合量的定标曲线,并验证出复合量与综合量具存在线性关系,由此标出灵敏电流计的灵敏度及内阻,用置信概率为95%的不确定度,对测量数据和实验结果进行分析和评价,最终得到更为可靠合理的实验结果。For the experimental device for testing sensitive galvanometer, we study sensitivity and in- ternal resistance of sensitive galvanometer by the method of isogonics and Spss, introducing Spss curve estimation to analyze experimental dat. After that, calibration curve among resistance compound amount,resistance ratio, cursor deflection, and voltage compound amount is obtained. In addition, we testified the linear relationship between compound amount and comprehensive amount, so calibrate sensitivity and internal resistance of sensitive galvanometer. We analyze and evaluate the experiment data with the uncertainty confidence probability of 95%. It＇s shown that we gain reasonable experi- ment result.

关 键 词：等偏法 灵敏电流计 SPSS 灵敏度 内阻 不确定度 

分 类 号：O4-33[理学—物理]