VISCOSIMETRE OPERANT EN CONTINU NOTAMMENT A HAUTE TEMPERATURE

LA PRESENTE INVENTION A POUR OBJET UN VISCOSIMETRE DESTINE A FONCTIONNER EN CONTINU, COMPRENANT UN CAPILLAIRE DE MESURE DANS LEQUEL LA PHASE LIQUIDE DONT ON MESURE LA VISCOSITE SUBIT UNE PERTE DE CHARGE.ELLE EST CARACTERISEE EN CE QUE LE CAPILLAIRE DE MESURE 17 CONSISTE EN UN TUBE DE GRANDE LONGUEUR DE L'ORDRE DE QUELQUES METRES, ENROULE SUR LUI-MEME SELON UNE HELICE D'UN DIAMETRE D'AU MOINS 10CM, LE DIAMETRE INTERIEUR DUDIT TUBE ETANT SENSIBLEMENT COMPRIS ENTRE 0,20 ET 0,30MM, ET EN CE QUE LES MOYENS DE MESURE DE LADITE PERTE DE CHARGE CONSISTENT EN DEUX CAPTEURS DE PRESSION SEMBLABLES 22, 23 DISPOSES A L'ENTREE ET A LA SORTIE DUDIT CAPILLAIRE 17 POUR UNE MESURE DIFFERENTIELLE DE LA PERTE DE CHARGE DANS CE CAPILLAIRE. The present invention concerns a viscosimeter adapted to operate continuously, comprising a measuring capillary in which the liquid phase whose viscosity is measured undergoes a loss of pressure. It is characterized in that the measuring capillary (17) consists of a tube of several meters length, wound around itself according to a helix having a diameter of at least 10 cm, the internal diameter of the tube being substantially comprised between 0.20 and 0.30 mm, and in that a sensor for measuring the loss of pressure consists of two identical pressure sensors (22,23) positioned at the entry and at the exit of the capillary (17) for differentially measuring the loss of pressure in this capillary.