G - Physics – 01 – K
Patent
G - Physics
01
K
73/72, 73/51.5
G01K 11/20 (2006.01) A61B 5/028 (2006.01) G01F 1/32 (2006.01) G01F 1/68 (2006.01) G01F 1/688 (2006.01) G01F 1/698 (2006.01) G01F 23/22 (2006.01) G01K 11/32 (2006.01) G01L 11/00 (2006.01) G01N 25/18 (2006.01)
Patent
CA 1230240
Abstract To measure the heat transfer coefficient of a sample, an element with temperature sensitive optical properties is placed in contact or implanted in the sample. The element is heated or cooled. The temper- ature difference between the element and the unheated sample and the rate of heating or cooling indicate the heat transfer coefficient of the sample. In one embo- diment, the element is heated or cooled at a constant rate. The heat transfer coefficient of the sample is then inversely related to the difference in temperature between the element and the unheated sample. Alter- natively, the element may be heated or cooled at such a rate that the temperature difference between the element and the unheated sample remains substantially constant. The heat transfer coefficient of the sample then varies directly with the rate of heating or cooling. The heat transfer coefficient of a sample is a measure of its composition and other physical properties. The compo- sition of gasses, liquids, the presence of bubbles in a liquid, and fluid levels can be detected by the optical technique. Pressure and flow rates of fluids can also be detected. The technique can be used also to more accurately measure the thermal conductivity and temper- ature of small objects with small heat capacities.
465344
Luxtron Corporation
Ridout & Maybee Llp
LandOfFree
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