高灵敏度蝶翼式微加速度计抗跌落性能分析与试验  

Analysis and test of anti-drop performance of high-sensitivity butterfly micro-accelerometer

作　　者：单恒 侯占强[1] 肖定邦[1] 虢晓双 曾承志 吴学忠[1] SHAN Heng;HOU Zhanqiang;XIAO Dingbang;GUO Xiaoshuang;ZENG Chengzhi;WU Xuezhong(College of Intelligent Science,National University of Defense Technology,Changsha 410073,China;Hunan eNavigate Technology Co Ltd,Changsha 410100,China;Tangzhi Science&Technology Hunan Development Co Ltd,Changsha 410007,China)

机构地区：[1]国防科技大学智能科学学院,湖南长沙410073 [2]湖南天羿领航科技有限公司,湖南长沙410100 [3]唐智科技湖南发展有限公司,湖南长沙410007

出　　处：《传感器与微系统》2021年第12期22-25,共4页Transducer and Microsystem Technologies

摘　　要：灵敏度与抗冲击性能相互矛盾。以低量程、高灵敏度蝶翼式微加速度计为对象,对其抗跌落性能进行了理论分析与试验研究。介绍了蝶翼式微加速度计的基本结构和工作原理,仿真分析了敏感结构在静态载荷作用下的应力,建立了跌落条件下敏感结构的动力学模型,并对其进行了静力与跌落冲击试验。理论分析与试验结果表明,跌落冲击中初速度是导致结构损坏的主要原因。Sensitivity and impact resistance are contradictory.Taking low-range, high-sensitivity butterfly micro accelerometer as object, and theoretical analysis and test research on its anti-drop performance are carried out.The basic structure and working principle of the butterfly micro accelerometer are introduced.The stress of the sensitive structure under static load is simulated and analyzed, the dynamic model for the sensitive structure in drop condition is established, and the static force and drop impact tests are carried out.Theoretical analysis and test results show that the initial velocity in the drop impact is the main reason causes structural damage.

关 键 词：微加速度计 跌落 冲击 蝶翼式 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] TP212[自动化与计算机技术—控制科学与工程]