High-stability piezoelectric oscillator

Abstract

Design means is provided to prevent electronic parts used in a high-stability piezoelectric oscillator from deterioration due to aging by heat when the high-temperature side of the working temperature range is as high as 85° C. A high-stability piezoelectric oscillator, which is provided with a first constant temperature oven having housed therein a piezoelectric resonator and electronic parts for oscillation, a second constant temperature oven having housed herein said first constant temperature oven, and temperature control means for controlling the temperature of each constant temperature oven, and in which the temperature of said first constant temperature oven is set lower than the temperature of said second constant temperature oven, is characterized in that a heat source is disposed near said piezoelectric resonator.

Dependencies are inferred from the claim text.