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High Resolution Shadow Imaging

High resolution imaging and special backlight illumination are the key components of the ParticleMaster Shadow system. As opposed to laser diffraction or interferometric methods shadowgraphy does not require transparent and spherical particles and, therefore, is a quite universal technique for comprehensive particle characterization.The ParticleMaster software package automatically identifies valid particles in an image series and calculates all particle properties with outstanding processing speed incl. statistical information in real-time.

Shadowgraphy can well be combined with other flow imaging methods like PIV or thermometry for use in multiphase flows.

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ParticleMaster Shadow System Features
  • simultaneous size, position and shape
  • particle number density (corrected for different size classes)
  • particle verlocity derived from double frame exposures
  • velocity - size correlations, histograms, scatterplots
  • mass flux
  • visualization of ligaments, spray break-up and atomization
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Product Information