Origin和C语言在热敏电阻温度特性实验中的应用

Application of Origin and C language in the experiment of thermistor temperature characteristic test

热敏电阻温度特性实验在数据处理过程中由于数据点多、误差大等问题会给数据处理带来不便。介绍了Origin作图法和C语言粗差剔除法在实验数据处理中的应用。首先提出了采用Origin8软件处理实验数据的方法;然后将一元线性回归曲线拟合与C语言程序相结合,采用线性回归粗差点判别法,实现粗差点的剔除,有效地提高判别结果的准确性;最后对比两种方法的优缺点。结果表明,两种方法各有优缺点,可以将两种方法有效结合得到准确又直观的结果。

Data processing resuhs of the measurement of temperature characteristics of the thermistor may have large error, due to problems such as the data points, gross error and so on. This paper intro- duces the application of Origin mapping method and C language gross elimination method in experimen- tal data processing. Firstly, it is proposed to use Origin8.0 software to process experimental data. Then, linear regression curve fitting is combined with C program. Linear analysis discriminated method is used to eliminate the gross rotor points, so the accuracy of the diseriminant resuhs is improved effectively. Finally, compare the advantages and disadvantages of the two methods. The resuhs show that the two methods have their own advantages and disadvantages, and the two methods can be combined effectively to obtain accurate and intuitive resuhs.