Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1990.07a
- /
- Pages.269-272
- /
- 1990
A Study on the Shift of Resonant Frequency in a Composite Piezoelectric Vibrator
복합압전진동자의 공진주파수 이동에 관한 연구
- Lee, Joung-Woo (Dept. of Electrical Eng, Kon-Kuk Univ) ;
- Han, Deuk-Sung (Dept. of Electrical Eng, Kon-Kuk Univ)
- Published : 1990.07.05
Abstract
This paper introduces a technique of shifting the resonant frequency and of depressing the spurious modes in the composite piezoelectric vibrator laminated in the order of piezoelectric vibrator/thin insulator/piezoelectric vibrator, whose vibrators have the the same sizes and the same properties, respectively. The composite vibrator has shown the characteristics that the fundermental resonant frequency has decreased and spurious modes have depressed with increase of the capacitance of the inserted insulator. And the frequency characteristics of the composite vibrator without insulator have been nearly the same as those of each vibrator.
Keywords