高g值加速度计动态校准的实现方法  

Implementation Method Research on Dynamic Calibration of High-g Accelerometer

作　　者：王燕[1,2] 李婉蓉[1] 范锦彪[1,2] 

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051 [2]中北大学计算机与控制工程学院,太原030051

出　　处：《火力与指挥控制》2014年第12期142-144,共3页Fire Control & Command Control

摘　　要：针对高g值加速度计动态校准要求激励信号的频率大于加速度计谐振频率的需要,采用小型Hopkinson杆和激光干涉仪构成动态校准系统,对某型高g值加速度传感器进行了校准实验。结果表明:该系统能产生脉宽10滋s以下的窄脉冲加速度激励信号,对一阶谐振频率大于100 k Hz的高g值加速度计可以实现动态校准。IFor the frequency of the exciting signal should be greater than the resonant frequency of the accelerometer to achieve dynamic calibration of high-g accelerometer,a dynamic calibration system based on the micro-Hopkinson bar and laser interferometer is designed and a set of calibration tests is conducted for a high-g piezoelectric accelerometer.The experimental results show that the system can generate the narrow pulse acceleration excitation signal of Pulse width under 10 μs. For first order resonance frequency is greater than 100 kHZ of high-g accelerometer dynamic calibration is available.

关 键 词：高g值加速度计 动态校准 窄脉冲 小型Hopkinson杆 

分 类 号：TB934[一般工业技术—计量学]