| 摘要 |
<p>A technique for generating isotherms representing the cross-sectional temperature profiles of molten glass (17) flowing in a forehearth channel (20). A plurality of temperature sensors (21-29) 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 (53). which interpolates these temperature readings to approximate the temperature intermediate the various sensing points, and optionally beyond the array of sensing points. The isotherms are obtained by fitting a Legrangian 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.</p> |
