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A remote query magnetostrictive viscosity sensor.

P G Stoyanov1, C A Grimes

  • 1Department of Electrical Engineering, The University of Kentucky, Lexington 40506, USA.

Sensors and Actuators. A, Physical
|July 30, 2002
PubMed
Summary
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Magnetically soft metallic glass ribbons act as remote viscosity sensors. Their resonant frequency changes correlate with liquid viscosity and density, enabling real-time measurements.

Area of Science:

  • Materials Science
  • Physics
  • Chemical Engineering

Background:

  • Viscosity measurement is crucial in various industrial processes.
  • Existing viscosity sensors can be limited in remote or in-situ applications.
  • Magnetostrictive metallic glasses offer unique sensing capabilities.

Purpose of the Study:

  • To develop and validate metallic glass ribbons as in-situ remote viscosity sensors.
  • To establish a correlation between sensor response and liquid properties.
  • To model the sensor's behavior based on physical principles.

Main Methods:

  • Utilized magnetically soft, magnetostrictive metallic glass ribbons as sensing elements.
  • Immersed sensors in liquids and monitored changes in resonant frequency.
Keywords:
NASA Discipline Life Sciences TechnologiesNon-NASA Center

Related Experiment Videos

  • Developed an elastic wave model incorporating frictional forces.

    • Main Results:

    • Demonstrated a correlation between resonant frequency shifts and the square root of the liquid viscosity-density product.
    • The elastic wave model accurately describes the sensor's response.
    • Metallic glass ribbons function effectively as remote viscosity sensors.

    Conclusions:

    • Magnetostrictive metallic glass ribbons are viable for in-situ remote viscosity sensing.
    • The developed model provides a theoretical basis for sensor performance.
    • This technology offers a novel approach for real-time fluid characterization.