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A VERSATILE RECORDING COUETTE-TYPE VISCOMETER.

Harold Corey1, Norman Creswick1

  • 1Thomas J. Lipton, Inc., 800 Sylvan Avenue, Englewood Cliffs, N.J., U.S.A.

Journal of Texture Studies
|April 4, 2017
PubMed
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A novel coaxial-cylinder viscometer was developed for comprehensive fluid rheological property measurement. This advanced instrument offers load independence, precise temperature control, and rapid flow curve generation for diverse fluid systems.

Area of Science:

  • Rheology
  • Instrument Development
  • Fluid Dynamics

Background:

  • Characterizing fluid rheological properties is crucial for understanding material behavior.
  • Existing viscometers may have limitations in terms of load dependence, temperature control, or measurement speed.
  • Accurate measurement across wide viscosity and shear rate ranges is essential for many applications.

Purpose of the Study:

  • To develop a novel coaxial-cylinder viscometer with advanced drive, control, and recording capabilities.
  • To enable precise measurement of rheological properties for a wide range of fluid systems.
  • To improve the efficiency and accuracy of rheological characterization.

Main Methods:

  • Development of a coaxial-cylinder viscometer incorporating novel drive and control systems.

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  • Implementation of a load-independent and thermostatically controlled measurement environment.
  • Integration of an X-Y recorder for data acquisition with various input waveform capabilities (unidirectional and oscillatory).

    • Main Results:

    • The developed viscometer accurately measures rheological properties across a broad spectrum of viscosities and shear rates.
    • The instrument exhibits load independence and precise thermostatic control, ensuring reliable measurements.
    • Continuous shear rate/shear stress flow curves can be generated in under 30 seconds, demonstrating high efficiency.

    Conclusions:

    • The novel coaxial-cylinder viscometer provides a versatile and efficient platform for comprehensive rheological characterization of fluid systems.
    • Its advanced features, including load independence and rapid data acquisition, overcome limitations of conventional instruments.
    • This instrument is suitable for diverse applications requiring precise rheological measurements over wide operating ranges.