Temperature control apparatus

G - Physics – 05 – D

Patent

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Details

G05D 23/24 (2006.01) F24F 11/00 (2006.01) F24F 1/00 (2006.01)

Patent

CA 2106181

A temperature control apparatus, in which it is intended to utilize a characteristic of a temperature detection device as it is for temperature detection over a wide range of changing temperature to thereby make it possible to control a unit by detecting a wide range of changing temperature of the unit using the single temperature detection device, comprising a temperature detection circuit for outputting a voltage corresponding to the resistance value of the temperature detection device whose resistance value varies with changes in temperature and processing means having a step acquiring the voltage, after A/D (analog-to-digital) converting the same, and then converting the voltage to a mathematically expressed temperature value using a predetermined relationship and a step performing process to execute temperature control using the temperature value obtained by the conversion.

Cette invention concerne un appareil de réglage de la température dont le fonctionnement repose sur la caractéristique d'un capteur thermique utilisé pour la détection dans une large plage de variation, ce qui permet de régler une unité par la détection d'une large plage de variation de la température de ladite unité à l'aide du seul capteur thermique ci-dessus qui comprend un circuit de détection qui délivre une tension fonction de la résistance du capteur thermique, résistance qui varie selon la température, et un moyen de traitement qui, après conversion analogique-numérique de la tension acquise, transforme celle-ci en une expression mathématique de température basée sur une relation prédéterminée, puis applique la température ainsi obtenue comme température de consigne de l'appareil de réglage.

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