Transient flow capillary tube viscometer and method for measuring viscosity thereof

摘要

The present invention relates to a viscometer for measuring the viscosity of a liquid, in particular an apparatus for measuring the viscosity of a liquid using a transient flow phenomenon, and is a capillary viscometer that is convenient for measuring the viscosity of a liquid floating non-Newtonian fluid and floating particles .;Transient flow capillary viscometer of the present invention for this purpose and the reservoir 100 for storing the liquid; A capillary tube 200 connected to the reservoir 100 to allow liquid to flow; A load cell device 300 which collects the liquid passing through the capillary 200, measures its mass, and converts the mass into an electrical signal; An interface device 400 which delivers the electrical signal converted by the load cell device 300 in real time; Comprising a computer device 500 for processing the signal of the interface device 400 to calculate the viscosity of the fluid, using a small amount of sample accurately and quickly the viscosity of the liquid over a wide range of shear rate There is a measurable effect.