Differential microcalorimeter for liquid samples

Year: 1989

Authors: Barbini A., Bertolini D., Cassettari M., Papucci F., Salvetti A., Salvetti G., Veronesi S.

Autors Affiliation: Istituto di Fisica Atomica e Molecolare del C.N.R., via del Giardino 7, Pisa, Italy

Abstract: A microcalorimeter for liquid samples with high performance and low cost is described. It is essentially a differential apparatus in a \”twin\” configuration with two cylindrical cells. Two resistive sensors, put in a Wheatstone bridge, are wound on the cells to measure the temperature difference between them. Sensitivity, response time, and calibration procedure are reported. As illustrative example, the specific heat of some liquids at two temperatures has been measured.

Journal/Review: REVIEW OF SCIENTIFIC INSTRUMENTS

Volume: 60 (7)      Pages from: 1308  to: 1311

KeyWords: Thermodynamic measurements and instrumentation; Thermodynamic properties; Wheatstone bridge circuit
DOI: 10.1063/1.1140982

Citations: 12
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