The evaluation of the error of the thermal pulse technique used to measure moisture content of root substrates in space greenhouse

Point thermopulse probes were used to monitor moisture level in the root substrates during cultivation of higher plants in a space greenhouse. Investigated were performance data of the thermopulse moisture probe in integration with the space greenhouse. It was shown that within the substrate moistur...

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Bibliographic Details
Published in:	Aviakosmicheskaia i Äkologicheskaia meditsina Vol. 36; no. 1; p. 55
Main Authors:	Podol'skiĭ, I G, Norokh, A A, Bingham, G E
Format:	Journal Article
Language:	English Russian
Published:	Russia (Federation) 2002
Subjects:	Differential Thermal Analysis - methods Extraterrestrial Environment Humans Meteorological Concepts Models, Biological Plants Space Flight Time Factors Water NASA Discipline Plant Biology NASA Experiment Number 284093 1/2 Non-NASA Center
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Summary:	Point thermopulse probes were used to monitor moisture level in the root substrates during cultivation of higher plants in a space greenhouse. Investigated were performance data of the thermopulse moisture probe in integration with the space greenhouse. It was shown that within the substrate moisture range from 20 up to 100% of the full saturation the technique error does not exceed 1.5%. The thermopulse technique bears much promise for metrologic monitoring of the root substrate moisture content in space greenhouses no matter water and air supply technology.
ISSN:	0233-528X