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Proceedings Paper

Application of IR imaging during temperature-modulated differential scanning calorimetry (TMDSC) measurements
Author(s): Hsin Wang; M. Pyda; R. Androsch; Bernhard Wunderlich
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Paper Abstract

In a temperature-modulated differential scanning calorimetry (TMDSC) system, temperatures are measured by thermocouples under the sample and reference furnaces. TMDSC helps to accurately measure temperature during a DSC measurement. It also helps the researcher to establish a more realistic model to calculate heat capacity of various materials. This study examined assumption of temperature gradient in TMDSC characterization. An infrared camera was used to obtain surface temperature maps of DSC cells during temperature sweeps. TMDSC units from Perkin-Elmer and TA Instrument were studied using different heating and cooling rates. Temperature gradient exists between the top and bottom of the sample. IR images showed that temperature distributions within the sample and reference cells exist. Phase lags between the top and bottom temperatures were also observed.

Paper Details

Date Published: 15 March 2002
PDF: 8 pages
Proc. SPIE 4710, Thermosense XXIV, (15 March 2002); doi: 10.1117/12.459610
Show Author Affiliations
Hsin Wang, Oak Ridge National Lab. (United States)
M. Pyda, Univ. of Tennessee/Knoxville (United States)
R. Androsch, Univ. of Tennessee/Knoxville (Germany)
Bernhard Wunderlich, Univ. of Tennessee/Knoxville (United States)


Published in SPIE Proceedings Vol. 4710:
Thermosense XXIV
Xavier P. Maldague; Andres E. Rozlosnik, Editor(s)

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