Power-Compensated Fusion Furnace

摘要

A power-compensated fusion furnace 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 power-compensated fusion furnace comprising:
a furnace cavity; a plurality of electrical heating elements; and a power control system that independently controls an electrical duty cycle of each of the plurality of electrical heating elements, wherein at least one heating element in the plurality thereof has an electrical duty cycle that differs from the electrical duty cycle of other heating elements in the plurality.