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一块加有氧化铁的PZT型压电陶瓷材料,设有区域电极和区域极化,因而阻抗就显著地不同。于是,输入和输出电极之间得到了高压变换。第三组电极耦合到一个其他组电极,能够使变压器完成自激振荡。为了使陶瓷体能够支撑在不止一个振动节点上,可以使陶瓷体在振动基频的谐波上产生振动,即更正确地是沿陶瓷体的全声波模或二个以及更多的半波模上工作。
A piece of PZT-type piezoelectric ceramic material with iron oxide is provided with the area electrode and the area polarization, so the impedance is significantly different. As a result, high voltage conversion is obtained between the input and output electrodes. The third set of electrodes is coupled to one of the other set of electrodes, allowing the transformer to self-oscillate. In order for the ceramic body to be supported on more than one vibrating node, the ceramic body may be caused to vibrate at harmonics of the fundamental frequency of vibration, that is more exactly the total acoustic modes along the ceramic body or two or more half-wave modes Work