PVDF传感器在爆炸近区超压测量中的应用研究

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (12) : 146-149.

论文

PVDF传感器在爆炸近区超压测量中的应用研究

任新见1,2 陈虎林3

作者信息 +

Application Study of PVDF Sensors on Shock Wave Test in Near Zones of Explosive

REN Xin-jian1 ,2 CHEN Hu-lin3

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文章历史 +

摘要

凝聚相炸药爆炸产生强冲击波、电磁脉冲和光热效应，爆炸近区测试环境非常复杂，常规压阻式硅压力传感器难于满足测试要求。为准确测量装药近区爆炸参数给工程防护结构的爆炸毁伤评估提供参考依据，基于PVDF压电薄膜制作压力传感器，采用分离式霍普金森压杆（SHPB）对自制传感器进行标定；进行TNT化爆试验对自制PVDF传感器测试效果进行考核，并提取试验结果与AutoDyn软件计算结果进行比较。对比表明，测量值与计算值偏差小于10%，爆炸近区超压的试验测量可采用防干扰处理后的PVDF压电传感器解决。

Abstract

Strong shock wave, electro-magnetic pulse,light-heat effects give out when condensational explosive explodes. Test circumstance is formidable in the near zones of explosive. Conventional piezo-resistance silicon sensors can’t meet the test demand.In order to get the detonation parameters of the near zones of explosive and provide reference values for explosion damage assessment on protective structures, PVDF piezo-electric sensors are made and scaled by SHPB. The experiment of TNT explosion is carried out to examine the validity of the sensors.The difference of results between experiments and calculations by AutoDyn is less than 10%. A home-made PVDF piezo-electric sensor after interference treatment is suitable for the test of shock wave in the near zones of explosive .

导出引用

任新见;陈虎林. PVDF传感器在爆炸近区超压测量中的应用研究[J]. 振动与冲击, 2012, 31(12): 146-149

REN Xin-jian;CHEN Hu-lin. Application Study of PVDF Sensors on Shock Wave Test in Near Zones of Explosive[J]. Journal of Vibration and Shock, 2012, 31(12): 146-149