Patents Assigned to Viscocheck AB
  • Patent number: 6591664
    Abstract: To measure characteristics of a non-Newtonian fluid, preferably blood, a non-magnetic container is provided for receiving the fluid. A magnetic body is contained in the container, and a winding is provided around the container. An AC current supplying device is connected to the winding for supplying input AC current of different amplitudes thereto to generate magnetic fields of different strengths in the container to cause the magnetic body to oscillate at different shear rates in the fluid. A measuring device is provided for measuring amplitude and/or phase of the oscillations of the magnetic body and a shear rate determining device is provided for determining the shear rates by measuring differences between the amplitude and/or phase of the oscillations of the magnetic body and the amplitude and phase of the input AC currents.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: July 15, 2003
    Assignee: Viscocheck AB
    Inventor: Jan-Eric Litton