Vibration analysis of the new shape extensional mode quartz crystal resonator with barbell-type vibration bar

Author

Kawashima, Hirofumi ; Nakazato, Mitsuhiro

Author_Institution

Seiko Electron. Components Co. Ltd., Tochigi, Japan

fYear

1991

fDate

8-11 Dec 1991

Firstpage

511

Abstract

A novel shape length extensional mode quartz crystal resonator with a barbell-type vibration bar, which makes it possible to provide lower frequency, is described. Frequency characteristics, frequency temperature behavior, and electrical characteristics of the resonator are theoretically and experimental clarified. A frequency equation is derived by applying a variational principle whereby a vibration analysis for the resonator is performed, taking into account lateral motions and including a vibrational portion and two supporting portions. Frequency characteristics, frequency-temperature behavior, and electrical characteristics are analyzed. The results are found to agree well with the measured values. The resonator is also miniaturized, is shock-resistant, and has a small series resistance in the frequency range of 200 kHz to 500 kHz, because it is incorporated with the vibrational portion and the two supporting portions by a chemical etching process

Keywords

crystal resonators; 200 to 500 kHz; barbell-type vibration bar; electrical characteristics; frequency equation; frequency temperature behavior; shape extensional mode quartz crystal resonator; variational principle; vibration analysis; Chemical processes; Electric resistance; Electric variables; Electrical resistance measurement; Equations; Frequency; Motion analysis; Performance analysis; Shape; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1991. Proceedings., IEEE 1991

Conference_Location

Orlando, FL

Type

conf

DOI

10.1109/ULTSYM.1991.234217

Filename

234217