传感技术学报2026，Vol.39Issue(2)：280-287,8.DOI:10.3969/j.issn.1004-1699.2026.02.008
提高压电冲击传感器固有频率方法研究
Research on the Method of Improving the Natural Frequency of Piezoelectric Shock Sensors
李北国 1李威 2李东星 1李亚欣1
作者信息
- 1. 北京航天长征飞行器研究所,北京 100076
- 2. 中北大学电子测试技术国家重点实验室,山西 太原 030051
- 折叠
摘要
Abstract
Zero drift is an important cause of measurement errors in sensors,so reducing the zero drift is a significant measure to improve the measurement accuracy of sensors.The main reason for the zero drift of the impact sensor is that it is subjected to an out-of-band shock acceleration which is similar to its natural frequency,therefore increasing natural frequency is an effective method to reduce the zero drift of impact sensor currently.A finite element model of impact sensor is established.According to the output signal property of the impact sensor,and combined with the structural characteristics such as thickness,density and elastic modulus of the piezoelectric patches,the base and the mass block that make up the impact sensor,some theoretical calculations and numerical simulations have been done and a method to improve the natural frequency of the piezoelectric impact sensors is proposed in this paper.关键词
冲击传感器/提高固有频率/有限元仿真/静动态分析Key words
shock sensor/increase the natural frequency/finite element simulation/static and dynamic analysis分类
机械制造引用本文复制引用
李北国,李威,李东星,李亚欣..提高压电冲击传感器固有频率方法研究[J].传感技术学报,2026,39(2):280-287,8.
