Dynamic thermal control for ovenized oscillators

Details Dynamic thermal control for ovenized oscillators Dynamic thermal control for ovenized oscillators

1999-04-07

2000-10-03

Paik, Sang

Electric heating

Heating devices

With power supply and voltage or current regulation or...

331 69, H05B 102, H03B 100

Patent

active

061276618

ABSTRACT:
A heater control system for ovenized oscillators that is capable of changing the relative influence of multiple temperature sensors in order to keep a uniform temperature profile across the oscillator enclosure. A resonator is located near a heater in an enclosure. Several temperature sensors are located in proximity to the resonator for sensing temperature. One of the sensors is closer to the heater and another sensor is closer to an outer wall of the enclosure. A control circuit is connected between the sensors and the heater to provide a control signal to the heater, in response to the sensors. An adjustment circuit is connected to each of the sensors, for adjusting the relative influence that each sensor has on the control circuit.

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