G - Physics – 01 – K
Patent
G - Physics
01
K
G01K 17/00 (2006.01) G01N 25/02 (2006.01) G01N 25/48 (2006.01)
Patent
CA 2475793
The invention relates to a device for measuring quantities of heat while simultaneously measuring the evaporation kinetics and/or condensation kinetics of the most minute amounts of liquid in order to determine thermodynamic parameters. The aim of the invention is to determine low thermal outputs, which are absorbed or released by the sample, as well as small differences between thermal outputs with regard to a reference measurement of the same magnitude. To this end, a most minute amount of liquid is located inside a measuring chamber having a constant temperature and air humidity. At least one thermal sensor is provided for repeatedly measuring the thermal radiation emitted from the most minute amount of liquid. A measuring means serves to determine the time-dependent change in the most minute amount of liquid. A computer is assigned to the measuring chamber in order to register, display, evaluate and/or subsequently process the measured values.
L'invention concerne un ensemble permettant de mesurer des quantit~s de chaleur en mesurant simultan~ment les cin~tiques d'~vaporation et/ou de condensation de quantit~s minimales de liquide, afin de d~terminer des paramtres thermodynamiques. La pr~sente invention doit permettre de d~terminer les faibles puissances thermiques, qui sont absorb~es ou d~bit~es par l'~chantillon, ainsi que les petites diff~rences en matire de puissances thermiques par rapport ~ une mesure de r~f~rence du mÚme ordre de grandeur. A cet effet, une quantit~ minimale de liquide est situ~e ~ l'int~rieur d'une chambre de mesure ~ temp~rature et humidit~ atmosph~rique constantes. Au moins un capteur de temp~rature permet une mesure r~p~t~e du rayonnement thermique ~manant de cette quantit~ minimale de liquide. Un moyen de mesure sert ~galement ~ d~terminer un changement de quantit~ minimale de liquide en fonction du temps. De plus, un ordinateur, associ~ ~ ladite chambre de mesure, permet l'enregistrement, l'affichage, l'~valuation et/ou le traitement ult~rieur des valeurs de mesure.
Hilgenfeld Rolf
Kiel Hans-Juergen
Klupsch Thomas
Muehlig Peter
Walter Axel
Borden Ladner Gervais Llp
Imb Institut Fuer Molekulare Biotechnologie E.v.
Leibniz-Institut Fuer Altersforschung-Fritz-Lipmann-Institut E.v
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