Accession Number : ADP001508

Title :   A Method of Adjusting Resonant Frequency and Frequency-Temperature Coefficients of Miniaturized GT Cut Quartz Resonators,

Corporate Author : DAINI SEIKOSHA CO LTD MATSUDO-SHI (JAPAN)

Personal Author(s) : Ochiai,O. ; Kudo,A. ; Nakajima,A. ; Kawashima,H.

Report Date : 1982

Pagination or Media Count : 6

Abstract : The new type miniaturized GT cut quartz crystal resonator developed by us consists of a vibrational portion and two supporting portions incorporated into one-body by a photolithographic process. It is highly shock resistant and has excellent frequency temperature characteristics over a wide temperature range. It is, however, impossible to avoid a distribution of resonant frequency of a principal vibration caused by that of dimensions and a distribution of frequency temperature characteristics caused by that of a dimensional ratio in resonator production. We have been developing a method of adjusting the resonant frequency of the principal vibration and frequency temperature coefficients of the miniaturized GT cut quartz crystal resonator. Consequently, by eliminating weights disposed on a plurality of positions of a vibrational portion or by adding weights on a plurality of positions of a vibrational portion, we have established a method of adjusting the resonant frequency of the principal vibration and the frequency temperature coefficients. (Author)

Descriptors :   *Frequency, *Control, *Symposia, *Resonant frequency, *Quartz resonators, Shock resistance, Methodology, Modification, Temperature, Coefficients, Manufacturing, Production, Quality control, Crystals, Resonators

Distribution Statement : APPROVED FOR PUBLIC RELEASE