An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of the fluid, using a...http://www.google.es/patents/US6484565?utm_source=gb-gplus-sharePatente US6484565 - Single riser/single capillary viscometer using mass detection or column height detection
Single riser/single capillary viscometer using mass detection or column ...