Thermal measuring and testing – Temperature measurement – By electrical or magnetic heat sensor
Patent
1980-09-22
1983-06-21
Yasich, Daniel M.
Thermal measuring and testing
Temperature measurement
By electrical or magnetic heat sensor
219494, G01K 701, G01K 2518, H05B 102
Patent
active
043891250
ABSTRACT:
A method for easily measuring surface temperature distribution of a sample consisting of a plurality of coexisting materials having different radiation factors at a specified temperature and a system for performing the surface temperature measuring method. In this measuring method, a sample is at first kept at a known temperature, and the amount of infrared rays radiated from a plurality of narrow regions divided on the surface of the sample is obtained. This measurement is performed at least twice at two known temperatures and therefrom temperature coefficients of infrared rays of each of a plurality of subdivided regions on the surface of the sample are then obtained. Succeedingly, with a sample being under the measuring condition, the amount of infrared rays radiated from a plurality of regions on the surface of the sample is measured. On the basis of such amounts of infrared rays and the temperature coefficients, respective unknown temperatures of the plurality of regions subdivided on the surface of the sample can be determined.
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patent: 3434332 (1969-03-01), Maley
patent: 3463007 (1969-08-01), Jones et al.
patent: 3465150 (1969-09-01), Hugle
patent: 3766781 (1973-10-01), Roberts
patent: 3868508 (1975-02-01), Lloyd
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Publication, IEEE Transactions-vol. IECI-20, No. 4, Nov. 1973, "Computer Based Thermographic Displays and Techniques", pp. 200-205.
Kobayashi Ikuro
Shimizu Kyozo
Vlsi Technology Research Association
Yasich Daniel M.
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