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Torsional sensor applications in two-phase fluids.

J O Kim1, H H Bau, Y Liu

  • 1Centre for quality Eng. and Failure Prevention, Northwestern Univ., Evanston, IL.

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
|January 1, 1993
PubMed
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A novel corrosion-resistant waveguide sensor accurately measures liquid properties in real-time. This innovative sensor technology offers precise online monitoring for various liquid characteristics and levels.

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Sensor Technology

Background:

  • Real-time monitoring of liquid properties is crucial in many industrial processes.
  • Existing sensors may face limitations in harsh environments or with complex mixtures.

Purpose of the Study:

  • To develop a robust sensor for online, real-time characterization of submerged liquids.
  • To enable measurement of diverse liquid properties including density, concentration, and level.

Main Methods:

  • Development of a solid, corrosion-resistant torsional waveguide with a diamond cross-section.
  • Exploitation of the inverse relationship between torsional stress wave propagation speed and liquid equivalent density.
  • Integration of self-calibrating electronics for temperature compensation.

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Main Results:

  • The sensor accurately measures liquid content in bubbly media, pure liquid density, and mixture/suspension equivalent densities.
  • Precise determination of suspension concentration and liquid level is achievable.
  • The sensor operates effectively across a wide temperature range (-196°C to 300°C) and pressure range (up to 7 MPa).

Conclusions:

  • A versatile and reliable waveguide sensor has been engineered for comprehensive liquid analysis.
  • The sensor's design and operational principle allow for accurate measurements in challenging conditions.
  • This technology enhances process monitoring and control capabilities in various applications.