影响加速度计模型系数的因素及理论分析  

Influence factors and theoretic analysis for model coefficient of accelerometer

作　　者：刘晓东[1] 丁霞萍[2] 雷立铭[1] 

机构地区：[1]天津航海仪器研究所,天津300131 [2]江苏省丹阳市劳动局,江苏丹阳212300

出　　处：《传感器技术》2002年第2期29-32,共4页Journal of Transducer Technology

摘　　要：液浮摆式积分加速度计是舰用惯性导航系统的核心元件 ,对长时间海上自主导航 ,加速度计的非线性和交叉耦合误差是导航误差的主要来源。为了降低其非线性和交叉耦合误差 ,对加速度计表体的因素及二元调宽脉冲力反馈回路因素进行了理论分析。并通过试验对力反馈回路采取的解决措施进行了验证 ,证明方法是可行。Liquid floated pendulous integrating accelerometer is core element of inertial navigation system to naval ships.To self contained navigation at sea for a long time,no linearity and across coupling error of accelerometer are chiefly error source to navigation error.In order to enhance accuracy of accelerometer,instrument self factors and force feedback loop factor of adjusting width of duality pulse are analyzed in theory,and it are proven to be feasible and effective to take measure of force feedback circuit by test.

关 键 词：加速度计 模型系数 误差 

分 类 号：TH824.4[机械工程—仪器科学与技术]