加速度场离心试验用一体化大量程六维力传感器的研制  

Development of an Integrated Large Range Six-Axis Force Sensor for Centrifuge Test in Acceleration Field

作　　者：吴宝元[1] 申飞[1] 任阳[2] 吴仲城[1] 

机构地区：[1]中国科学院合肥物质科学研究院,合肥230031 [2]中国科学技术大学自动化系,合肥230027

出　　处：《宇航学报》2011年第9期2080-2087,共8页Journal of Astronautics

基　　金："863计划"面上项目(2008AA04Z205);"863计划"重点项目(2008AA0420601)

摘　　要：鉴于离心式加速度场模拟试验系统的需要,研制了一种大量程六维力传感器。在力传感器传统设计方法基础上,重点分析了传感器结构优化、材料选型、加工工艺、惯性耦合补偿等控制环节的影响。利用有限元方法对所设计的六维力传感器维间耦合、加速度场惯性效应耦合及输入输出关系进行仿真分析;借助相应的标定系统,实现六维力耦合效应的标定测试和耦合矩阵的获取,基于标定误差矩阵建立六维力传感器惯性效应补偿;静/动态实验结果表明所设计的大量程六维力传感器完全满足大加速场下力测试精度和稳定性要求。In view of the need for the simulation test system in a centrifugal acceleration field,an integrated large range six-axis force sensor is developed on the basis of traditional design method of force sensor with especial consideration of the structure optimization,material selection,processing technique and inertia coupling compensation,etc..The coupling among channels,inertia coupling compensation,inertia effect coupling in the acceleration field and the input/output relationship are simulated by utilizing the Finite Element Method（FEM）.Inertia effect compensation is achieved according to the calibration error matrix derived from the calibration test of inertia effect and the coupling matrix with the aid of a calibration system.The static and dynamic experimental results indicate that the large range six-axis force sensor designed by the principle mentioned above meets the demand for test accuracy and stability totally in the centrifugal acceleration field.

关 键 词：离心试验 一体化大量程六维力传感器 惯性效应 耦合补偿 标定误差矩阵 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]