Improvement of characteristics of quartz resonator-thermostat with direct heating piezoelement

摘要

The authors describe a project to improve temperature-frequency stability, power consumption, and warm-up time of direct heated resonator-thermostats. The design of the resonator on the basis of 10-MHz SC-cut plate employs direct and indirect heating of the plate. A mathematical model of the transient processes is presented. The resonator is shown to have a warm-up time of less than 15 s, a frequency vs. temperature stability of better than 3*10/sup -8/, and a heating current of about 5 mA.