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Lame-mode quartz crystal resonators

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3 Author(s)
Kawashima, H. ; Seiko Instrum. Inc., Matsudo, Japan ; Matsuyama, M. ; Sunaga, K.

A quartz crystal resonator of Lame-mode is available for realization of a frequency over approximately 3 MHz because its frequency constant has a value of 360 kHz·cm at a cut angle φ=36° and its frequency is dependent upon contour dimensions of the resonator. In this paper relationships of frequency constant (f·2z0), frequency temperature coefficients α, β and a capacitance ratio r versus cut angle φ, and also frequency temperature behavior are shown theoretically and experimentally. The calculated values agree well with the measured ones, and a quartz crystal resonator of Lame-mode is successfully obtained with a zero temperature coefficient at room temperature, a small series resistance R1 and a small capacitance ratio r

Published in:

Frequency Control Symposium, 1996. 50th., Proceedings of the 1996 IEEE International.

Date of Conference:

5-7 Jun 1996