摘要
分析了线加速度计精密离心机校准的误差来源,建立了加速度计静态特性方程各次项系数校准的系统误差传递模型,通过该模型可以实现各系统误差因素对方程系数校准结果影响的定量分析。证明了离心机加速度输出恒值系统误差不影响三次项系数,而线性变化的系统误差不影响零次项系数,即零g点偏值。对理论分析的结果进行了仿真验证。
The error sources of linear accelerometers＇ calibration were analyzed by precision centrifuge testing. The systematic error propagation model of calibration for each coefficient of the property equation of the accelerometers was built. By this model, it could be quantificationally analyzed how each systematic error source influenced the calibration result of the equation coefficients. It is demonstrated that constant systematic errors of the acceleration values of the precision centrifuge outputs will not affect the coefficient of the third-order term, while the linear varying errors of the acceleration values will not affect the coefficient of the zero-order term, which represents the zero-g offset. The result of the theoretical analysis was verified by simulation.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2008年第6期1633-1635,共3页
Journal of System Simulation
关键词
加速度计
静态特性
离心机
校准
误差模型
accelerometers
static properties
centrifuge
calibration
error model
