CAJ | 학술논문

拉伸法可以测量金属丝的杨氏模量，本文使用逐差法处理实验数据以减小实验中的随机误差和仪器误差。实验中测量的物理量较多，人工处理数据比较繁琐，且容易出错。因此，本文使用Matlab软件和逐差法处理数据。把测量的实验数据和仪器不确定度输入Excel表格中，然后把excel文件引入到Matlab软件中，运行逐差法计算的程序后可以直接得到金属丝的杨氏模量，以及测量的百分差和相对不确定度，处理过程快捷精确。
랍신법가이측량금속사적양씨모량，본문사용축차법처리실험수거이감소실험중적수궤오차화의기오차。실험중측량적물리량교다，인공처리수거비교번쇄，차용역출착。인차，본문사용Matlab연건화축차법처리수거。파측량적실험수거화의기불학정도수입Excel표격중，연후파excel문건인입도Matlab연건중，운행축차법계산적정서후가이직접득도금속사적양씨모량，이급측량적백분차화상대불학정도，처리과정쾌첩정학。
Young’ s modulus of the metal wire can be determined by means of the tensile method. The experi-mental data can be processed by the method of successive difference,which can decrease the random error and the instrumental error of the system. Many physical parameters are measured and the data process by hands is trivial with high error probability. Therefore,the data is processed with Matlab software. The measured data and the instrumental error of the system in the Excellfile can be imported into and processed by the Matlab software using the method of successive difference,and then the Young’ s modulus of the metal wire can be obtained quickly and precisely with low percentage difference and low relative uncertainty. .