Method and apparatus for generating isotherms in a forehearth te

Details Method and apparatus for generating isotherms in a forehearth te Method and apparatus for generating isotherms in a forehearth te

1986-07-15

1988-04-12

Smith, Jerry

Boots, shoes, and leggings

364476, 364477, 364557, 374124, 374134, 374137, 374141, 65158, 65162, G01K 116

Patent

active

047379170

ABSTRACT:
A technique for generating isotherms representing the cross-sectional temperature profiles of molten glass flowing in a forehearth channel. A plurality of temperature sensors are placed at predetermined locations within the plane of the channel cross-section, advantageously in a rectangular grid, to provide a matrix of temperature readings. Digitalized temperature readings from these sensors are routed to a processor, which interpolates these temperature readings to approximate the temperatures intermediate the various sensing points, and optionally beyond the array of sensing points. The isotherms are obtained by fitting a Lagrangian interpolating polynomial through the various recorded temperatures. The interpolated values thus generated may be used to provide real time displays of isotherms in the forehearth cross-section under examination, or may be included in a control loop.

REFERENCES:
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patent: 4301509 (1981-11-01), Haase et al.
patent: 4371483 (1983-02-01), Mattson
patent: 4403251 (1983-09-01), Domarenok et al.
patent: 4440509 (1984-04-01), Agarwal
patent: 4463437 (1984-07-01), Schenck et al.
patent: 4501552 (1985-02-01), Wakamiya
patent: 4637910 (1987-01-01), Impink, Jr.
patent: 4638436 (1987-01-01), Badger et al.

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