G - Physics – 01 – F
Patent
G - Physics
01
F
354/29, 354/31,
G01F 1/56 (2006.01) G01F 1/00 (2006.01) G01F 1/66 (2006.01) G01F 1/78 (2006.01)
Patent
CA 1145156
Abstract This invention relates to the measurement of the temperature and/or mass flow rate of a free falling molten stream of material. Previous techniques have not recognized the effects temperature variations of the molten stream of material have on the measurement of the above flow properties. The present invention utilizes a line scan camera having photodiodes disposed in a predetermined array to measure the temperature and mass flow rate of a moving mass of molten material. This is accomplished in the present invention by limiting the maximum voltage generated by any one photodiode exposed to light energy of a mass by varying the scan rate and thus the exposure time of the photodiodes in response to a variance in the light intensity and thus the temperature of the molten mass of material.
371759
Johns-Manville Corporation
Macrae & Co.
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