Summary
This paper illustrates some advantages of the microprocessor over analog control equipment in the area of temperature control. A simple system using a digital thermometer, a microcomputer and a triac-modulator permits the achievement of very stable temperatures in a simple oven (short and long term fluctuations equal to the thermometer resolution) and a very fast change in set points. Several ovens can be controlled by the same microcomputer.
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Literature
Régulation d'un processus thermique par contre-réaction d'état, parG. Zwarg, Mesures Régulation et Automatisme, Juin 1977.
Régulation numérique directe d'un processus thermique à forte inertie, parA. Sabatier, Mesures Régulation et Automatisme, Décembre 1974.
Initialisation des compensateurs échantillonnés à réponse plate, parM. Nougaret, Automatisme, Juin 1970.
Modern Control Theory, parJ. Tou, McGraw-Hill, 1964.
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Zwarg, G., Guiochon, G. Application of the microprocessor and of time-optimal control laws to the control of ovens. Chromatographia 11, 59–62 (1978). https://doi.org/10.1007/BF02261764
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DOI: https://doi.org/10.1007/BF02261764