Method and apparatus for measuring thermophysical properties

Thermal measuring and testing – Determination of inherent thermal property

Reexamination Certificate

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C374S009000, C374S121000

Reexamination Certificate

active

07407325

ABSTRACT:
The present invention provides a method for measuring thermophysical properties that includes: rapid resistive self-heating of a specimen by using a heating current; emitting a light to the specimen heated by the rapid resistive self-heating of the specimen; measuring a temperature change of the specimen induced by emitting the light to the specimen; and deriving a thermal diffusivity of the specimen from the temperature change induced by emitting the light to the specimen.

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patent: 2004303466 (2004-10-01), None
Parker, et al., “Flash Method of Determining Thermal Diffusivity, Heat Capacity, and Thermal Conductivity”, Sep. 1961, Journal of Applied Physics, vol. 32, No. 9, pp. 1679-1684.
Baba et al., “Improvement of the laser flash method to reduce uncertainty in thermal diffusivity measurements”, Nov. 6, 2001, Meas. Sci. Technol., vol. 12, pp. 2046-2057.
Cezairliyan, Ared,Design and Operational Characteristics of a High-Speed(Millisecond)System for the Measurement of Thermophysical Properties at High Temperatures, Journal of Research of the National Bureau of Standards—C. Engineering and Instrumentation, vol. 75C, No. 1, Jan.-Mar. 1971, pp. 7-18.
Righini, F. et al.,Thermal Conducivity by a Pulse-Heating Method: Theory and Experimental Apparatus, International Journal of Thermophysics, vol. 11, No. 4, 1990, pp. 629-641.

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