C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 37/023 (2006.01) C03B 37/012 (2006.01) C03B 37/025 (2006.01) G05B 11/42 (2006.01)
Patent
CA 2103396
Abstract A method and apparatus for drawing glass objects from glass feedstock, wherein a dimension of the glass object is measured on-line and controlled by a control structure which compensates for the deadtime between a change to the drawing speed and the measurement of the effect of that change to the measured dimension. The model which compensates for the deadtime is preferably nonlinear, and the control gains and model parameters are preferably continuously calculated during the drawing process. The invention is particularly applicable to drawing optical waveguide cane from optical waveguide preforms.
Koenig David Mark
Majestic Peter John
Maschmeyer Richard Orr
Corning Incorporated
Gowling Lafleur Henderson Llp
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