一种精密离心机误差分析与精度评定方法  

An Error Analysis and Evaluation Method of Precision Centrifuge

作　　者：王胜利[1] 刘合朋 胡吉昌 钟正虎[1] 张春京[1] WANG Sheng-li;LIU He-peng;HU Ji-chang;ZHONG Zheng-hu;ZHANG Chun-jing(Beijing Institute of Aerospace Control Devices,Beijing 100039)

机构地区：[1]北京航天控制仪器研究所,北京100039

出　　处：《导航与控制》2018年第4期100-105,共6页Navigation and Control

基　　金：国家重大科学仪器设备开发专项(编号:2013YQ310737)

摘　　要：介绍了用于线加速度计精密离心试验的精密离心机设备各项误差的来源和定义。详细分析了精密离心机各项误差在线加速度计离心机试验中对仪表给定加速度精度的影响并给出了具体的计算方法。在线加速度计精密离心机试验中,可根据每个误差项的具体来源和影响,对误差项进行补偿或忽略,以提高测试精度和降低试验难度。对于计入的误差项,可计算出具体的数值,从而综合确定出精密离心机设备对整个测试实验的不确定度影响。通过研究精密离心机误差模型,找到了提高精密离心机给定加速度输入精度的途径,给出了工程化的用于精密离心机精度评定的方法。The paper introduced source and definition of errors in precision centrifuge testing of linear accelerometers. It analyzed effect for accuracy of indicated acceleration in accelerometers test by each error source from precision centrifuge in detail, and introduced calculating method of errors. In precision centrifuge testing of linear accelerometers,the error term could compensated or ignored to improve test precision and reduce difficulty of practice according analyse source and effect of each error term. For the error term to be included, specific numerical values could be calculated.Therefore, the influence of the precision centrifuge equipment on the uncertainty of the whole test practice was determined.By studying the precision centrifuge error model, the way to improve the precision of precision centrifuge＇s acceleration input was found. At last,an engineering method for precision evaluation of precision centrifuge was given.

关 键 词：精密离心机 线加速度计 误差源 精度评定 

分 类 号：V448.15[航空宇航科学与技术—飞行器设计]