PROCEDE ET DISPOSITIF DE CONTROLE D'UN PROCESSUS DE TRANSFORMATION HETEROGENE AVEC DIFFUSION CINETIQUE SE DEROULANT DANS UN COURANT DE LIQUIDE TURBULENT

A heterogeneous transformation process taking place in a liquid, e.g. the desulphurization of steel, which produces vibrations, is monitored by detecting vibrations produced therein 1. The vibrations are subjected to spectral analysis and, in signal processing circuit 3, is divided into two frequenc...

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Bibliographische Detailangaben
1. Verfasser:	GABOR PAL, GABOR ENDROCZI, GYORGY HOLLOS, GABOR NAGY, GABOR SZONYI, LASZLO BODI ET ZOLTAN BALAZS
Format:	Patent
Sprache:	fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CONTROLLING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TESTING THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A heterogeneous transformation process taking place in a liquid, e.g. the desulphurization of steel, which produces vibrations, is monitored by detecting vibrations produced therein 1. The vibrations are subjected to spectral analysis and, in signal processing circuit 3, is divided into two frequency ranges (figures 3 and 4). The ratio of the (average) vibration amplitudes in the two frequency ranges is formed, and this enables instantaneous values for a diffusion coefficient of the transformation process to be calculated, so that the end point of the process may be determined. Automatic control of the process is also envisaged.