公开(公告)号：US3751974A

公开(公告)日：1973-08-14

申请号：US3751974D

申请日：1971-10-07

Applicant: TEXACO AG

Inventor： URBAS W

IPC: G01N11/16 ,  G01N11/10

CPC classification number: G01N11/16

Abstract: A device for continuously measuring the viscosity of highmolecular liquids in turbulent flow comprises a vibrating reed on a viscosimeter mounted in a tube opening into an agitating cylindrical vessel with the free end of the vibrating reed pointing upstream and positioned a distance from the flowing liquid equal to three times the diameter of the tube. The face of the reed is substantially parallel to a plane including a typical arcuate line of flow at the opening, and the tube containing the reed is mounted with its longitudinal axis at an angle between 5* and 15* below a plane of a typical arcuate line of flow at the tube opening. The tube longitudinal axis of one embodiment is mounted at an angle of between 25* and 35* outwardly from a plane tangent to the lines of flow at the tube opening and a modification has the vibrating reed mounted in two tubes and spaced from the opening a distance of three tube diameters. Both embodiments prevent gas cushion build up around the vibrating reed and the attendant inaccurate measurement in a reaction producing higher molecular materials under azeotrope-forming conditions.