基于MATLAB对数函数拟合的热敏电阻特性研究

Study on the Characteristic of Thermal Resistance Based on Logarithmic Function Fitting of MATLAB

准确的确定温度与热敏电阻变化关系,采用了n次对数函数多项式进行数据拟合,来逼近反非线性曲线,利用矩阵算法确定多项式方程的系数。从而实现基于MATLAB的对数函数多项式拟合,动态连续实现电阻与温度的一一对应关系。

For the accurate determination of temperature and thermal resistance variation, the paper uses N logarithmic function polynomial fitting data to approximate the non characteristic curve and uses matrix algorithm to determine the coefficients of polynomial equations so as to achieve the logarithmic function polynomial fitting based on MATLAB, dynamically and continuous realize the corre- sponding relationship between resistance and temperature one to one.