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Area of Science:

  • Materials Science
  • Fluid Dynamics
  • Optical Measurement Techniques

Background:

  • Directly measuring properties of molten materials at high temperatures is difficult.
  • Contactless methods are needed for accurate characterization of dynamic changes.
  • Geometric changes in free-falling molten materials can correlate with material properties like viscosity.

Purpose of the Study:

  • To develop a highly accurate contactless method for characterizing molten materials.
  • To correlate geometrical changes of free-falling molten material with its properties.
  • To enable dynamic characterization of molten materials at high frame rates.

Main Methods:

  • A multi-camera setup was designed for high-accuracy measurements.
  • Molten material was observed during free-fall.
  • Geometrical parameters were characterized dynamically throughout the free-fall process.
  • High-speed imaging at 600 frames per second was utilized.

Main Results:

  • The multi-camera setup achieved accuracy close to image segmentation limits.
  • Geometrical parameters were successfully characterized dynamically during free-fall.
  • The system demonstrated suitability for estimating the length of free-falling molten objects.

Conclusions:

  • The proposed multi-camera setup offers a viable contactless method for molten material characterization.
  • Dynamic geometrical analysis during free-fall provides insights into material properties.
  • This technique is suitable for precise, high-speed analysis of molten materials.