一种基于K-L展开式计算传感器最佳拟合直线的新方法  

A New Method for Calculating the Best Fitting Line of the Transducer Based on K-L Expansion

作　　者：吴一全[1] 余瑞芬[1] 

机构地区：[1]南京航空学院

出　　处：《测控技术》1989年第1期10-16,共7页Measurement & Control Technology

摘　　要：本文针对高精度传感器,提出了应用模式识别中的karhunen-Loeve展开式计算传感器最佳直线的方法,给出了与之密切相关的线性度计算方法;其次尝试性地提出利用模糊聚类分析中的相似系数和距离函数,更自然方便地表征传感器的输入-输出校准数据曲线与理论拟合直线的偏差程度,从而给出了传感器线性度的多种定义公式,其中也包括了目前常用的计算公式;最后,文中的计算实例表明该方法具有实用和推广价值。For the high precision transducer, this paper pro poses Karhunen-Loeve Expansion in model identification for calculating the best fitting line, gives the closely related method of calculating linearity and trys to employ the similar coefficient and distance function in fuzzy aggregente analysis to dimenstrate the digree of deviation between the calibration curve of input-output and theoretical fitting line of the transducer, thus, several equations for calculating linearity of transducer in eluding the common equation used at the present time are presented. Finally, the example in this paper shows that the above method is pratical and worth to be adopted.

关 键 词：传感器 K-L展开式 最佳拟合直线 

分 类 号：TM555[电气工程—电器]