| 摘要 |
<p>The method involves lining piezo-layers between inner electrodes, where the piezo-layers are made of ceramic material. An effective direction of a piezo-actuator is alternated with different polarity of electrical voltage. The piezo-layers are polarized by pressurizing outer electrodes (6, 7) with electric field (11) at temperature as above Curie temperature of the ceramic material. Domain alignment of the ceramic material is frozen through cooling under again pressurizing of the outer electrodes through the electric field so as to oscillate the electric field. An independent claim is also included for a piezo-actuator including a piezo-injector.</p> |
