用SPSS标定差分比例运放电路的放大倍数  

Using SPSS to Calibrate Amplification Factor of Differential Proportional Operational Amplifier Ciruits

作　　者：张有周 王新春 姜泳泳 李明杰 ZHANG Youzhou;WANG Xinchun;JIANG Yongyong;LI Mingjie(School of Physics & Electronic Science, Chuxiong Normal University, Chuxiong, Yunnan Province 675000)

机构地区：[1]楚雄师范学院物理与电子科学学院

出　　处：《楚雄师范学院学报》2019年第3期46-51,共6页Journal of Chuxiong Normal University

基　　金：云南省大学生创新创业项目“用SPSS曲线估计探究模拟放大器的性能指标”;楚雄师范学院培育学科(物理电子学)建设项目

摘　　要：使用差分运放实验装置,测定电路的放大倍数。用非等精度的测量方法获取测量数据,引入SPSS的线性估计函数分析实验数据,得到输出电压和输入电压差的定标曲线,并验证输出电压与输入电压具有线性关系。由此标定出差分运放的放大倍数,并用数字式存储示波器时时观测与记录信号的反向功能,用置信概率为百分之九十五的不确定度,对测量数据进行分析,将所得实验结果与理论结果进行对比分析和评估,从而验证所选试验方法的合理性以及实验数据测量结果的可靠性。Aiming at the differential operational amplifier experimental device, the measurement of the magnification of the circuit is taken as the object of study. The measurement data are obtained by unequal precision, and the experimental data are analyzed by introducing the linear estimation function of SPSS. The calibration curves of the difference between the output voltage and the input voltage are obtained, and the linear relationship between the output voltage and the input voltage is verified. In this way, the magnification of the operational amplifier is calibrated, and the inverse function of the signal observed and recorded at all times by the digital storage oscilloscope is used. The measurement data are analyzed with the uncertainty of confidence probability of 95%. The experimental results are compared and evaluated with the theoretical results, and the reliable and reasonable experimental results are obtained.

关 键 词：差分比例运算放大器 非等精度测量 SPSS分析 放大倍数 不确定度估算 

分 类 号：TN721[电子电信—电路与系统]