【摘要】 本文根据冲击波加载铁电陶瓷的换能原理,建立了斜冲击波加载PZT柱形组件的电响应珲论模型。所考虑的换能装置特点是:(1)柱形组件由n块PZT空心圆盘并联堆叠而成:(2)PZT样品在冲击波压缩区具有恒定电导率r:(3)外电路由串联的电感L和电阻R以及并联电容C_p组成。数值计算结果表明,这种柱形爆电换能器用来提供大电流,大能量(如2000A、100J)是适宜的。更多还原

【Abstract】 In this paper, a theoretical model on the electrical responce of oblique-shock-loaded cylindircal PZT unit is established in accordance with principle of energy transformantion of shock-loaded ferroelectric ceramics. Some characteristics of the considered transducer device are as follows: (1)The cylindrical unit consists of n lumps of PZT disks with the hole connected electically in parallel; (2) The conductivity of the PZT-ceramic material in shock wave compressed region is a constant; (3) The external circuit consists of an inductance connected in series with the risistance and a capacitance connected in parallel v/ith them. The numerical calculation shows that the cylindrical explosive-electric transducer is suitable to provide a strong current and an amount of large electrical energy (e. g. 2000A, 100J).更多还原