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Thermal conductivity instrument for measuring planetary atmospheric properties and data analysis technique

Hathi, B.; Daniell, P. M.; Banaszkiewicz, M.; Hagermann, A.; Leese, M. R. and Zarnecki, J. C. (2007). Thermal conductivity instrument for measuring planetary atmospheric properties and data analysis technique. Journal of Thermal Analysis and Calorimetry, 87(2) pp. 585–590.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1007/s10973-006-7607-1
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Abstract

This paper outlines the method of measurement and analysis of the thermal conductivity instrument (THP) that has successfully returned measurements from the atmosphere of Saturn’s moon Titan during the descent of the Huygens probe on 14th January 2005.
The technique is validated by analysing laboratory calibration data gathered by our instrument in three pure gases (nitrogen, methane, and ethane) over Titan’s temperature range (90 to 180 K). Calibration results show errors <1% compared to reference values when processed using this method.
Details included here along with references should serve as a useful guide for interpreting data from thermal conductivity instruments for space or other stand alone applications for fluids over various pressure and temperature ranges. Our calibration only verifies measurements over Titan conditions, although [4] suggests that the validity of this method extends up to 400 atmospheres and 800°C.

Item Type: Journal Article
ISSN: 1388-6150
Keywords: fluid; Huygens; sensor; SSP; THP; Titan
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 7891
Depositing User: Kyra Proctor
Date Deposited: 06 Jun 2007
Last Modified: 02 Dec 2010 19:59
URI: http://oro.open.ac.uk/id/eprint/7891
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