Apparatus for controlling optical fiber diameter based on initia

Details Apparatus for controlling optical fiber diameter based on initia Apparatus for controlling optical fiber diameter based on initia

1999-07-12

2000-10-31

Hoffmann, John

Glass manufacturing

Fiber making apparatus

With measuring, controlling, sensing, timing, inspecting,...

486491, C03B 37027

Patent

active

061384801

ABSTRACT:
Disclosed is a method of controlling the diameter of a glass rod drawn from a glass preform. The diameter control begins as soon as a glass gob begins to move away from a heated portion of the preform. The velocity of the gob is measured and furnace temperature adjusted to maintain gob velocity at a pre-selected target value. By starting diameter control at this early stage of the process, utilization of the preform is improved as is the utilization of the drawing equipment.

REFERENCES:
patent: 4801324 (1989-01-01), Hyland

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