Thermal measuring and testing – Determination of inherent thermal property
Patent
1984-11-15
1986-01-07
Frankfort, Charles
Thermal measuring and testing
Determination of inherent thermal property
374 45, 374 57, G01N 2520
Patent
active
045630976
ABSTRACT:
A method of evaluating the cooling performance of a heat treatment agent, wherein a sensor (1), in which the relationship between the electric resistance value and the temperature is known, is immersed in the heat treatment agent, a voltage and a current are applied to the sensor, the voltage and the current are made variable to change the temperature of the sensor, and a predetermined relationship is sought between the temperature and the dissipated heat value on the basis of the change in temperature. An apparatus for achieving the above-described method includes: a power supply section (5) for supplying the power to the sensor; a measurer (8) for measuring the voltage and the current value supplied to the sensor; operational units (12 and 13) for seeking the temperature and the dissipated heat value of the sensor from the voltage and the current value, which are obtained by this measurer; a comparator (15) for comparing the temperature of the sensor with a preset temperature and delivering the result of comparison to the power supply section; and a recorder for recording the temperature and the dissipated heat value, which are obtained by the operational units.
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patent: 2730894 (1956-01-01), Husa
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patent: 3054048 (1962-09-01), Bolston et al.
patent: 3968677 (1976-07-01), Felton, Jr. et al.
patent: 4412752 (1983-11-01), Cellitti et al.
Frankfort Charles
Idemitsu Kosan Company Limited
Will Thomas B.
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