Thermal Characterization of Microliter Amounts of Liquids by a Micromachined Calorimetric Transducer

Autor:	E. Santagata-Iervolino, G.S. Parr, W.H.A. Wien, A. W. van Herwaarden, Michael J. Vellekoop
Rok vydání:	2009
Předmět:	Thermal conductivity measurement Surface micromachining Materials science Thermal conductivity Thermal Analytical chemistry Conductivity Thermal diffusivity Joule heating Calorimeter
Zdroj:	2009 IEEE 22nd International Conference on Micro Electro Mechanical Systems.
DOI:	10.1109/memsys.2009.4805437
Popis:	We show a simple method of measuring thermal conductivity and thermal diffusivity of liquids. For this we used stacked liquid calorimeter chips fabricated with thin film membranes for optimum thermal isolation of the sample under test. DC joule heating allows measurement of conductivity, AC joule heating allows measurement of diffusivity. We measured the response for iso-propanol (IPA), methanol and water, and water with IPA, methanol and sugar, and the measurement results compare well with the conductivity values. Diffusivity could also be measured.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6f0b33c2507e1429baf4be35d8b43793 https://doi.org/10.1109/memsys.2009.4805437 Zobrazit plný text záznamu