QUARTZ-CRYSTAL RESONATOR Russian patent published in 2013 - IPC H03H9/19 

FIELD: radio engineering, communication.

SUBSTANCE: quartz-crystal resonator has a truncated lens piezoelectric element on which there are exciting electrodes, a film-type resistive heater and a temperature sensor, a base on which there is a piezoelectric element and a transistor heater which is in turn mounted in a housing by a heat-insulating holder; on the end surfaces of the truncated piezoelectric element there are thermoresistive films which are a load for two uncased transistors of output stages of a heat control, placed on top of the thermoresistive films at the centre of the end surfaces of the piezoelectric element. A second heat sensor is mounted on the periphery of the piezoelectric element at a normal to the first heat sensor, and the piezoelectric element itself is mounted in the housing by a heat-insulating holder, the base of which is in form of a plate made from dielectric material with high heat resistance.

EFFECT: prolonged stability and temperature stability of frequency, lower temperature dynamic coefficient of frequency and power consumed during heating, constant time at which the quartz-crystal resonator switches to operating mode.

2 dwg