Research on piezoelectric pressure sensor for shock wave load measurement
Research on piezoelectric pressure sensor for shock wave load measurement
复制标题
冲击波载荷测量压电压力传感器的研究
DOI：
10.1016/j.isatra.2020.05.018
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发表时间：
2020-09-01
期刊：
影响因子：
7.3
通讯作者：
Yang, Cong
中科院分区：
文献类型：
--
作者：
Li, Yingjun;Yang, Zhikang;Yang, Cong
提出了一种用于爆炸冲击波动态压力真实的实时测量的压电式压力传感器。通过增加质量块，设计了具有加速度补偿的晶群结构布局。建立了传感器的静态和动态模型，计算了传感器的灵敏度和固有频率。分析了传感器结构参数对其静、动态特性的影响。通过仿真得到了不同压力载荷下传感器输入输出的映射关系。制作了冲击波载荷下的传感器样机。搭建了静态和动态标定平台，完成了标定实验。实验结果表明，该传感器能够满足高频动态载荷信号的测量要求。(C)2020年伊萨。由爱思唯尔有限公司出版。保留所有权利。
The paper presents piezoelectric pressure sensor to measure the dynamic pressure of explosive shock wave in real time. Crystal group structural layout with acceleration compensation is designed by adding mass blocks. The static and dynamic model of the sensor is established to calculate the sensitivity and natural frequency. The influence of structural parameters of the sensor on its static and dynamic characteristics is analyzed. The mapping relationship between input and output of the sensor under different pressure loads is obtained by simulation. Prototype of the sensor under shock wave load is fabricated. Static and dynamic calibration platforms are built to complete calibration experiments. The experimental results show that the sensor can meet the measurement requirements of high frequency dynamic load signals. (C) 2020 ISA. Published by Elsevier Ltd. All rights reserved.