压力传感器非线性曲线拟合方法及不确定度分析  

Nonlinear Fitting Method for Pressure Sensors and Uncertainty Analysis

作　　者：赵海鹰[1] 

机构地区：[1]中国人民解放军92493部队89分队

出　　处：《计测技术》2014年第4期74-76,共3页Metrology & Measurement Technology

摘　　要：压力传感器输入输出关系通常以线性拟合直线来表示,而实际输入输出关系并不是直线关系,本文用最小二乘法拟合压力传感器输入输出非线性方程,并给出不确定度分析,可以提高测量的准确度。The relationship between input and output of pressure sensors is usually expressed through linear curve,but it is not a linear relationship. The least square method is used to simulate the nonlinearity of pressure sensors＇ input and output,and the methods for these uncertainty calculations and evaluations were derived to improve measure accuracy.

关 键 词：压力 传感器 线性拟合 不确定度 

分 类 号：TB93[一般工业技术—计量学] TP212[机械工程—测试计量技术及仪器]