冲击作用下多元石英计压电电流研究  

Piezoelectric Current from Shock-Loaded Multi-Element Quartz

作　　者：王雪敏[1] 李欣竹[1] 张汉钊[1] 傅秋卫[1] 卢敏[1] 陈志云[1] 蔡国儒[2] 

机构地区：[1]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川绵阳621900 [2]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2005年第5期493-495,506,共4页Piezoelectrics & Acoustooptics

摘　　要：对一种多元石英计的冲击动态响应进行了实验研究,实验结果表明,冲击压力低于2 GPa的条件下,多元石英计测量单元压电电流动态响应的基本特征,以及在边缘效应影响下,测量单元压电电流起跳值的降低、斜升幅度的增加,都类似于短路型单元石英计,因而可应用于冲击作用,特别是空间非均匀冲击作用分布等的研究。In this paper, one kind of multi-element quartz shock gauge （MEQSG） has been investigated up to 2 GPa shock pressure. The results show that the piezoelectric currents of active sensing elements are very similar and almost have the same character with the signal of single-element quartz under the same conditions. Signal probing confirms that the initial current jump and current ramping of MEQSG under field fringing＇ effect are also very similar with single-element quartz.

关 键 词：多元石英计 压电电流 平面冲击 

分 类 号：O482.41[理学—固体物理]