电涡流传感器特性曲线拟合的新方法

New method of electric eddy transducer characteristic fitting

为了减小电涡流传感器的非线性误差,在最小二乘法的基础上,结合0.618优选法,使拟合方程式中的常数更合理。用这种方法可以求得最佳拟合直线方程和最小的非线性误差。此法适用于各种类型的线性传感器或可以通过适当的变量代换把变量之间的非线性关系化为线性关系的传感器或测量系统。

To decrease non-linear error of electric eddy transducer on the basis of lowest dual involution method and 0.618 optimum selection method,the constant of imitative equation is made to be more reasonable. Using this method optimum imitative straight line equation and minimum non-linear error can be got.This method can be applicable to all types of linear sensor,or arbitrary sensor and measurement systme which can convert the nonlinear relationship into linear relationship by suitable variables replacement method.