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Quartz resonator fluid density and viscosity monitor

  • US 5,741,961 A
  • Filed: 08/18/1993
  • Issued: 04/21/1998
  • Est. Priority Date: 08/18/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for real-time in situ measurement of fluid density and viscosity comprising:

  • a first resonator comprising a smooth surface;

    a second resonator comprising a textured surface;

    first measuring means connected to at least one of the first and second resonators for measuring density of a fluid disposed on said resonators; and

    second measuring means connected to at least one of the first and second resonators for measuring viscosity of the fluid disposed on said resonators.

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