摘要
为了减轻非线性因素和环境温度的变化对倾角仪测量的影响,在充分研究倾角仪测量特性的基础上,采用多项式拟合方法研究了倾角仪非线性误差和温度漂移误差的软件补偿技术。建立了测量误差与非线性输出的多项式模型,拟合求出了多项式模型的各个系数与环境温度的关系函数,得到了倾角仪在一定倾角范围和温度范围内的测量误差的计算公式。实验证明了方法的可行性和有效性。
To reduce the impacts of nonlinearity and variation of environment temperature on the measurement of the inclinator,a software compensation technology for the inclinator＇s nonlinear error and temperature drift error is studied using the method of polynomial fitting,on the basis of fully research on the measurement characteristic.The polynomial model between the measurement error and the nonlinear output is built.The relational function between each coefficient of the polynomial model and the environmental temperature is obtained by fitting.A calculation formula of the inclinator＇s measurement error in a range of inclination and temperature is acquired.The experiment demonstrates the feasibility and validity of the proposed method.
出处
《传感器与微系统》
CSCD
北大核心
2011年第3期84-86,共3页
Transducer and Microsystem Technologies
基金
国家重点基础研究发展计划资助项目(2007CB714005)
关键词
倾角仪
非线性误差
温度漂移误差
多项式拟合
inclinator
nonlinear error
temperature drift error
polynomial fitting
