• The CREC  fiber optical probes are based on the  use of fiber optic sensors that consist of an emitter optical fiber and a receiver optical fiber, combined with GRIN lenses (Graded Refractive INdex Lenses).
  • The CREC-GS sensor  generates a focal region with high light energy density 5mm away from the probe tip. Solid particles or bubbles crossing the focal region are detected with minimum flow disturbance.
  • These optiprobes have been successfully employed in downflow gas-solid reactors and dense phase fluidized beds, to characterize solid flow patterns.                                                                                                                                                                                                                                                                


The CREC - GS Optiprobes can be used to: 

  • Measure axial particle cluster velocities, cluster sizes and solid fractions in gas - solid catalytic reactors.
  • Characterize bubble flow in gas - solid fluidized beds.

  • Support CPFD (Computational Particle Fluid Dynamic) numerical calculations.