悬丝摆式加速度计摆组件不平衡量的检测与控制流程  

Detection and control process of pendulum-assembly unbalance for suspension-wire pendulum accelerator

作　　者：张义福 姚世珩 陈西战 段丽媛 

机构地区：[1]陕西宝成航空仪表有限责任公司,宝鸡721006 [2]空军驻西北地区军事代表室,西安710032

出　　处：《中国惯性技术学报》2015年第1期125-130 136,共7页Journal of Chinese Inertial Technology

摘　　要：通过对悬丝摆式加速度计摆组件在0°、180°位置的受力分析,获得摆组件不平衡量S与摆态失准角δ0之间的关系,结合悬丝摆式加速度计的结构,提出了减小摆组件不平衡量的三种方法,并分析每种方法的可行性及不利影响。通过计算0°位置的输出E0与δ0的关系,获得E0与S的线性关系,用可检测量E0代替难于检测量S,实现对摆组件不平衡量的间接检测。提出了以可检测、可控制量E0控制摆组件不平衡量S的方法和流程,用实验标定了E0与摆态失准角高低温下变化量△δ0G、△δ0D之间的关系,并确定了E0的控制参数最大值。经实践验证,E0的最大值控制合理,控制方法和流程可行,效果明显,可供其它加速度计借鉴应用。By analyzing the forces on the pendulum assembly of the suspension-wire pendulous accelerator at 0° and 180° positions, the relationship between unbalance S and misalignment swing-angle δ<inf>0</inf> of the pendulum assembly is revealed. Based on the accelerator's structure, three methods for reducing the unbalance of the pendulum assembly are presented. The feasibilities and adverse effects of the three methods are analyzed. The linear relationship between E<inf>0</inf> and S is obtained by calculating the relationship between δ<inf>0</inf> and the output E<inf>0</inf> at 0° position, and then the detectable E<inf>0</inf> can be used instead of rarely detectable S to detect the pendulum assembly's unbalance. The method and procedure for controlling unbalance S of the pendulum assembly by detectable and controllable parameter E<inf>0</inf> are derived, and the relationships between E<inf>0</inf> and misalignment variation Δδ<inf>0G</inf> and Δδ<inf>0D</inf> at high and low temperatures are experimentally obtained, respectively, and the maximum value of control parameter E<inf>0</inf> is determined. Practical application indicates that the control method and procedure are feasible and effective and with reasonable controlled maximum E<inf>0</inf>, which can also provide reference for dealing with other accelerators. ©, 2015, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.

关 键 词：悬丝摆式加速度计 摆组件不平衡 摆态失准角 受力分析 

分 类 号：U666.1[交通运输工程—船舶及航道工程]