加速度计冲击特性的绝对校准方法  

Absolute Calibrating Method of the Shock Characteristic of Accelerometer

作　　者：连大鸿[1] 李新良[1] 曹亦庆[1] 张大治[1] 

机构地区：[1]中国航空长城计量测试技术研究所,北京100095

出　　处：《航空计测技术》2002年第3期3-8,共6页Aviation Metrology & Measurement Technology

摘　　要：从描述测量系统的微分方程出发,用系统的输入输出数据辨识系统的离散传递函数,弥补在加速度计灵敏度校准中不能给出加速度计动态特性的缺陷;再应用系统的离散传递函数将加速度计输出信号恢复为在一定的动态特性范围内“真实”的现场冲击加速度-时间历程。The differential equation of the measuring system is described in this paper. Using the input and output data determines the dispersed transmitted function of its system. Because it can make up the defect that the accelerometer can't give the dynamic characteristics during the calibration of accelerometer sensitivity. The accelerometer's output signal can be returned to the 'real' in-situ shock acceleration-time course by the dispersed transmitted function within a certain range of dynamic characteristics.

关 键 词：加速度计 冲击特性 校准方法 离散传递函数 信号恢复 

分 类 号：TH824.4[机械工程—仪器科学与技术]