EPJ Web of Conferences
Volume 76, 2014Thermophysical Basis of Energy Technologies
|Number of page(s)||7|
|Published online||27 August 2014|
Numerical evaluation of the measurement error of temperature by surface thermocouples in the conditions of incomplete thermal contact with object of measurement
National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Published online: 27 August 2014
One-dimensional and two-dimensional models of heat transfer are given in operation for research of the main characteristics of process of temperature measurement by means of surface thermocouples. Results of numerical evaluations of the relative error of the measurement arising owing to existence of air gap between a sensitive element of the thermocouple and object of measurement are provided. It is revealed that the measurement error in case of observance of necessary time of heating up (set minimum required time of measurement) can be lowered to level of an allowed error.
© Owned by the authors, published by EDP Sciences, 2014
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