扭摆测量微冲量的计算方法  

A Calculation Method of Micro-impulse with Torsion Pendulum

作　　者：方娟[1] 金星[1] 叶继飞[1] 王广宇[1] 周铁军[1] 

机构地区：[1]装备指挥技术学院,北京101416

出　　处：《机电产品开发与创新》2007年第5期17-18,43,共3页Development & Innovation of Machinery & Electrical Products

基　　金：国家973项目(61328)

摘　　要：建立了扭摆测量微冲量的简便计算方法,在给定力参数条件下,分析了扭摆的运动过程,得到了误差的计算公式。通过分析力的作用时间和波形对误差的影响,给出了现有扭摆系统下该计算方法的适用范围。计算结果表明,当扭摆振动周期大于力的作用时间的12.8倍时,该计算方法的误差小于1%。其方法的建立为扭摆测量微冲量提供一种简便实用的方法。A calculation method of micro-impulse is given. On the condition that force parameters are given, the course of motion is analyzed and a calculation method of error is proposed. Influence of force duration and wave shape on measurement of impulse is analyzed and applicability of this method is determined for the present system. In addition, we find the period of torsion pendulum should be 12.8 times than the force duration at least to ensure the error of the calculation method is less than 1%. This method can be used in quick-estimate impulse.

关 键 词：激光微推力器 扭摆 微冲量 计算方法 

分 类 号：O327[理学—一般力学与力学基础] TU311[理学—力学]