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ABSTRACT
Temperature measurement requires an upstream reflection in order to determine a measurement chain. The choice of a measurement chain is based upon two sets of data: the identification of the issue that the temperature measurement attempts to address and the choice of the instruments adapted to this measurement according to the observed conditions and constraints. This article recalls, with a couple of definitions, the notions of temperature and thermal energy which are essential to the understanding of the process. It then provides an exhaustive list of the questions which have to be asked before proceeding to a measurement in order to ensure the sound usage of the instruments and a satisfactory result.
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Read the articleAUTHORS
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Jacques ROGEZ: Engineer from the École Nationale Supérieure d'Électrochimie et d'Électrométallurgie de Grenoble (France) - Doctor of Science - CNRS (Centre National de la Recherche Scientifique) Research Director at the Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (Marseille)
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Jean le coze: Mining engineer - Doctor of Science - Professor at the École Nationale Supérieure des Mines de Saint-Étienne
INTRODUCTION
Before moving on to the actual temperature measurement, it's a good idea to ask yourself a number of questions and answer them as best you can. There are two steps to choosing a measurement chain: first, define the problem to be solved by temperature measurement, and the conditions under which it will be carried out. Then, choose the instrument that will provide the best compromise between the various constraints. After reviewing a few brief definitions that are essential to understanding how temperature measurement instruments work and how to use them correctly, this article will provide a guide to the main questions that need to be asked before measurement.
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