Method for Operating a Power-Compensated Fusion Furnace

摘要

A method for operating a power-compensated fusion furnace that includes a power control system having one switching device per heating element, power measurement circuitry, a master temperature sensor, and a controller. Each switching device is electrically connected to a respective heating element. The controller, in conjunction with the switching devices, is able to individually control the electrical energy flowing to each heating element, thereby controlling the duty cycle of each heating element. The duty cycles are corrected for one or more of variations in the electrical resistance of each heating element and position-dependent variations in furnace cavity temperature.

主权项

1. A method for operating a power-compensated fusion furnace comprising a plurality of switching devices and a plurality of heating elements, wherein each switching device is electrically connected to a respective heating element, the method comprising:
receiving, at each switching device, a control signal that causes the switching device to open and close as necessary to implement an electrical duty cycle for the respective electrically-connected heating element, wherein the electrical duty cycle for at least one of the heating elements differs from the electrical duty cycle of at least one other heating element in the plurality thereof.