【摘要】 基于电场诱导的反铁电相向铁电相转变中伴随有巨大电能量吸收的原理,实验研究了反铁电调节器对高压电脉冲的调节作用.工作电压是幅值为50kV、宽度为3.75μs的方型脉冲电压,反铁电调节器由锆锡钛酸铅反铁电陶瓷组成.实验结果显示,反铁电调节器消除了电脉冲前沿的上冲电压峰,填补了后沿的电压波谷,使电脉冲波形平滑化,从而达到了调节电脉冲波形的目的.测量得到的动态电滞回线结果表明,在上述电脉冲作用下材料发生了反铁电相与铁电相之间的转换.更多还原

【Abstract】 Based on the principle that a large electric energy is absorbed during the tronsfarmation from an antiferroelectric phase to a ferroelectric phase, the regulation of electric pulse by antiferroelectric adjuster is studied. The operation voltage was applied as a rectangular pulse of 50 kV amplitude and 3.75 μs width, and the antiferroelectric adjuster was made up by lead zirconate stannate titannate ceramics. Experimental results displayed that the electrical pulse crest at rising edge was undercut, and the trough at trailing edge was padded, and the electrical pulse was smoothed expectively. The measured electric hysteresis loop indicated that the transformation between antiferroelectric and ferroelectric phase took place by the action of the voltage pulse .更多还原