DEVICE FOR MEASURING A LIQUID LEVEL

Abstract

Abstract Translated from French L'INVENTION A POUR OBJET UN DISPOSITIF DE MESURE D'UN NIVEAU DE LIQUIDE, DU TYPE COMPRENANT UNE SONDE A FORT COEFFICIENT DE TEMPERATURE PLONGEE DANS LE LIQUIDE ET UN CIRCUIT DE DETECTION RELIE A LA SONDE POUR DELIVRER UNE TENSION REPRESENTATIVE DU NIVEAU DE LIQUIDE. LE DISPOSITIF SELON L'INVENTION COMPREND UN CIRCUIT MEMOIRE AUQUEL EST APPLIQUEE LADITE TENSION, UN CIRCUIT DE GENERATION DE SIGNAUX EN DENTS DE SCIE, UN COMPARATEUR AUQUEL SONT APPLIQUES, D'UNE PART, LE SIGNAL DE SORTIE DU CIRCUIT MEMOIRE ET D'AUTRE PART, LE SIGNAL EN DENTS DE SCIE, ET DONT LA SORTIE EST RELIEE A UN GALVANOMETRE D'AFFICHAGE. THE OBJECT OF THE INVENTION IS A DEVICE FOR MEASURING A LIQUID LEVEL, OF THE TYPE INCLUDING A PROBE WITH A HIGH TEMPERATURE COEFFICIENT immersed in the liquid and a detection circuit connected to the probe to deliver a voltage representative of the level of liquid. THE DEVICE ACCORDING TO THE INVENTION INCLUDES A MEMORY CIRCUIT TO WHICH THE SAID VOLTAGE IS APPLIED, A CIRCUIT FOR GENERATING SAW-TOOTH SIGNALS, A COMPARATOR TO WHICH ARE APPLIED, on the one hand, THE OUTPUT SIGNAL OF THE MEMORY CIRCUIT, and on the other hand , THE SIGNAL IN SAW TOOTH, AND THE OUTPUT OF WHICH IS CONNECTED TO A DISPLAY GALVANOMETER.

Inventors

No inventors recorded.

Bibliographic Details