地面反射压测量传感器安装结构模拟实验研究  

Simulation Test Study on Sensor Installation Structure of Ground Reflection Pressure Measurement

作　　者：李琛[1] 孔德仁[1] 商飞[1] 李丽萍[1] 赵传荣[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《测试技术学报》2016年第5期442-449,共8页Journal of Test and Measurement Technology

摘　　要：爆炸场试验中,强烈的高温场、机械冲击和振动等会使冲击波超压传感器产生寄生输出.本文基于冲击和振动对冲击波压力传感器测量的影响,设计了一种用于地面反射压测量的传感器安装结构,并开展了相关的模拟实验研究.通过力锤敲击传感器安装平板,同时得到有该安装结构的传感器和无该安装结构的传感器所测量的数据.对测量数据分别进行时域信号和频率信号比对分析,分析结果表明:该传感器安装结构能有效抑制机械冲击对压力传感器测量的影响,适用于爆炸场冲击波超压测量.In blast field test,blast over-pressure sensors produce spurious output because of the strong high temperature field,mechanical shock and vibration.In this study,based on the impacts of the measurements of blast over-pressure sensors due to shock and vibration,apressure sensor installation structure was designed for the measurements of ground reflection pressure and relevant simulation test study was proceeded.By tapping the plate,the measurement data of installation structure and non-installation structure sensors were gained.The measurement data was analyzed by using time and frequency domain analysis,the results show that this sensor installation structure can effectively restrain the impacts from mechanical shock on the measurements of pressure sensors,and it is suitable for the measurements of shock wave over-pressure in blast field test.

关 键 词：寄生输出 冲击和振动 地面反射压 时域和频域 

分 类 号：TP391.3[自动化与计算机技术—计算机应用技术]