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Planar Array Sensor for High-speed Component Distribution Imaging in Fluid Flow Applications.

Marco Jose Da Silva1, Tobias Sühnel2, Eckhard Schleicher2

  • 1Forschungszentrum Dresden-Rossendorf e.V., Institute of Safety Research, PO Box 510119, D-01314 Dresden, Germany. m.dasilva@fzd.de.

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Summary
This summary is machine-generated.

This study introduces a new planar array sensor for visualizing fluid distribution using electrical conductivity. The sensor, built with printed-circuit board technology, captures 2D images of fluid patterns at high speeds.

Keywords:
flow imaginginterdigital electrodemulticomponent flowmultiphase flowphase distribution.planar sensor

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Area of Science:

  • Electrical Engineering
  • Fluid Dynamics
  • Sensor Technology

Background:

  • Surface fluid distribution visualization is crucial in various scientific and industrial applications.
  • Existing methods may lack the resolution, speed, or non-invasive nature required for dynamic fluid analysis.
  • A need exists for advanced sensing technologies capable of real-time, high-resolution surface fluid mapping.

Purpose of the Study:

  • To present a novel planar array sensor for visualizing surface fluid distributions.
  • To detail the sensor's fabrication using printed-circuit board technology and its interdigital sensing structures.
  • To evaluate the system's performance in terms of measurement accuracy, depth sensitivity, and application in flow studies.

Main Methods:

  • Fabrication of a planar array sensor with 64x64 interdigital sensing structures using printed-circuit board technology.
  • Development of associated electronics for multiplexed electrical conductivity measurements via bipolar excitation and current sensing.
  • Acquisition of 2D conductivity distribution images at up to 2500 frames per second.

Main Results:

  • Successful visualization of surface fluid distributions through electrical conductivity mapping.
  • Demonstration of high-speed data acquisition capable of monitoring fast transient phenomena.
  • Evaluation confirming the system's measurement accuracy and depth sensitivity.

Conclusions:

  • The novel planar array sensor effectively visualizes surface fluid distributions with high spatial and temporal resolution.
  • Printed-circuit board fabrication offers a viable method for producing these advanced sensing devices.
  • The sensor system shows promise for applications in studying dynamic fluid behaviors in various flow scenarios.