A BVA quartz crystal oscillator for severe environments

Author

Besson, Raymond J. ; Mourey, Marc

Author_Institution

Ecole Nat. Superieure de Mecanique et des Microtechniques, Besancon, France

fYear

1990

fDate

23-25 May 1990

Firstpage

593

Lastpage

596

Abstract

A BVA quartz resonator which has been developed for use in severe environments is discussed. More than one hundred units have been produced and tested in France and in the US. The resonator is a 10 MHz, 3^rd overtone SC cut crystal. The unit fits into an ordinary HC 40 can without pinch-off. Typical values are given as R₁=95 Ω, Q=1.35×10⁶, g maximum sensitivity is less than 10^-10/g. turnover point=85°C, and pressure variation sensitivity=5×10^-11/bar. The resonator design is briefly discussed and described. Results of various tests and experimental data on this resonator are given and discussed. A type of quartz oscillator which has been developed to take advantage of this resonator for use in severe environments is described. Phase noise and Allan variance for the oscillators is discussed

Keywords

crystal resonators; radiofrequency oscillators; 10 MHz; Allan variance; BVA quartz resonator; HC 40 can; HF type; SC cut crystal; quartz crystal oscillator; severe environments; Electric shock; Energy consumption; Frequency; Heating; Oscillators; Ovens; Proportional control; Testing; Thermal sensors; Thermistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control, 1990., Proceedings of the 44th Annual Symposium on

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/FREQ.1990.177549

Filename

177549