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Magnetic Resonance-Based Viscometers and Methods

  • US 20110124744A1
  • Filed: 08/15/2008
  • Published: 05/26/2011
  • Est. Priority Date: 08/17/2007
  • Status: Active Grant
First Claim
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1. A method for determining viscosity of a liquid, wherein the liquid comprises a solvent, the method comprising:

  • (i) exposing a sample comprising the liquid and two or more non-settling particles, each of the particles having a positive magnetic susceptibility, to an applied magnetic field, wherein the applied magnetic field is of a strength sufficient to induce the particles to aggregate; and

    (ii) measuring a change in a nuclear relaxation property of the solvent caused by aggregation of the particles in the applied magnetic field;

    wherein a change in the nuclear relaxation property indicates a change in the viscosity of the liquid.

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