用于加速度传感器的气动活塞式冲击校准装置研究  

Research of Pneumatically Operated Piston Shock Calibration Device for Acceleration Sensors

作　　者：陈志龙 侯海鹏 杨建 罗仕挺 王汝苗 杨东方 严豪杰 CHEN Zhilong;HOU Haipeng;YANG Jian;LUO Shiting;WANG Rumiao;YANG Dongfang;YAN Haojie(Hangzhou Jebool Technology Co.,Ltd.,Hangzhou 311106,China;College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310032,China)

机构地区：[1]杭州集普科技有限公司,浙江杭州311106 [2]浙江工业大学机械工程学院,浙江杭州310032

出　　处：《机械制造与自动化》2024年第4期87-92,共6页Machine Building & Automation

摘　　要：基于比较校准法,研制了用于加速度传感器、包含机械冲击模块、冲击信号生成模块和测量控制模块的气动活塞式冲击校准装置。在关键参数分析计算和重要数学模型建立的基础上,对比不同种类波形发生器产生的冲击曲线结果,确定直径20 mm、厚度5 mm的羊毛毡为优选的波形发生器,其冲击峰值幅度和脉冲持续时间的重复性均不超过3%,达到国外同类产品的技术水平。同时,相对扩展不确定度符合ISO 16063—22规定的小于5%(k=2)的要求。A pneumatically operated piston shock calibration device for acceleration sensors including the modules of mechanical shock,shock signal generation and measurement control is designed based on the comparative calibration method.On the basis of analysis and calculation of key parameters and establishment of important mathematical models,the comparison of shock curve results of different waveform generators is carried out,and the wool felt with diameter of 20 mm and thickness of 5 mm is selected as the optimal waveform generator.The repeatability of shock peak amplitude and pulse duration are no more than 3%,which reaches the same level of similar foreign products.Meanwhile,the calibration uncertainty meets the ISO 16063—22 requirement of less than 5%(k=2).

关 键 词：加速度传感器 气动活塞 校准装置 冲击峰值幅度 脉冲持续时间 不确定度 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]