摘要
介绍了多项式曲线拟合原理和方法。并借助计算机高级语言程序 ,分别建立传感器磁场与温度、磁场与非线性输出的拟和函数。计算拟和函数的系数 ,系数确定后可以建立拟合曲线函数 ,对磁敏传感器的非线性、温度误差补偿 ,通过实验证明了方法可行。
The paper proposes principle and method of multiplication curve matching. High languages of computer are made use of getting curve coefficienrs of matching functions for magnetic field of sensor with temperature and for magnetic field with non-linearity output respectively. The coefficients of matching functions get by counting.As the coefficient is established, the curve of matching function can be set up. Non-linearity error and temperature error of magnetic sensors are compensated. Feasibility of the method is validated by experiment.
出处
《传感技术学报》
CAS
CSCD
2004年第1期90-92,共3页
Chinese Journal of Sensors and Actuators
基金
广东省重点科技攻关项目"测磁仪表技术研究"项目的资助 (课题编号 2 0 0 0 2KM0 110 2G)
关键词
传感器
误差补偿
最小二乘法
曲线拟合
least quadric multiplication
curve matching
non-linearity error compensation
temperature error compensation
