误差理论在杨氏模量实验数据处理中的应用

Applications on Error Theory in Data Processing of Young′s Modulus Experiment

基于拉伸法测定金属丝的杨氏弹性模量实验数据的特点，运用误差的性质、不确定度的评定、逐差法、最小二乘法和回归分析等理论进行误差分析和数据处理，使学生掌握基本的误差理论及具体的实验数据处理方法，培养学生的实验数据处理与误差分析能力．

Employing error theory ： the property of errors, the assessment of the uncertainty, the gradual deduction method, the least square method and regression analysis, we investigated the experimental data of Young＇s modulus measured by tensile test so that students can master fundamental knowledge of error theory and concrete data processing methods, as well as develop their ability to process data and analyze errors.