Individual Particle Characterization Device For Thermal/Cold Spray Processes
  The DPV is a revolutionary optical sensing device
that provides on-line monitoring of individual particle characteristics in thermal spray plumes. With only 5 minutes setup, you get:

  • Temperature measurements from 1000 to 4000°C 
  • Velocity measurements from 5 to 1200 m/s
  • Diameter measurements from 10 to 300 µm
  • Flux measurements
  • Up to 4000 particles per second analyzed depending on spraying conditions
  • Temperature, size & velocity histogram distributions with mean & standard deviation
  • Auto centering features as well as computer controlled sensor motion & plume mapping
  • Optional substrate temperature pyrometer
  • Optional CPS-2000 Cold Particle Sensor
   dpv evolution
  • Individual particles characteristics (not only mean values) measured on the fly
  • Simultaneous measurements for T, V & D
  • Simultaneous measurements for T, V & D
  • Possibility to implement feedback strategies based on the results
  • Drastic costs reductions in terms of test coupons & waste pieces
  • Brand new software version (DPVCSM OS platform) featuring, among other things:
  • Simplified user interface
  • Contour plots
  • Possibility to SAVE/REPLAY a complete experiments, including the video frames if your system is equipped with the PlumeSpector option
  • Much smaller, more portable enclosure
  • Touch screen user interface
  Although it was initially designed for process understanding, modeling & development, the DPV has evolved and is now used as well as a monitoring tool on the production floor (both in the aeronautic & automotive industries). Fully automated measurement sequences synchronized with the robot movements have been implemented in order to minimize operator intervention.
   dpv evolution screen
             DPV eVOLUTION Main Screen
  The optional CPS-2000 Cold Particle Sensor option was developed to allow characterization of particles so cold (or so small) that they do not emit enough infrared energy to be detectable with the standard DPV. The general idea here is to shine light into the measurement volume of the DPV; detection then relies on the light scattered by the particles (instead of the light radiated). Velocity, flux & size of the cold particles can be measured with this system.  Of course, temperature measurement is not possible with this configuration. The CPS-2000 uses a high-power, solid-state laser diode tuned on one of the DPV pyrometer's wavelength. The monochromatic IR light is delivered into the measurement volume through a fiber optic coupled into a carefully designed beam shaper in order to achieve very uniform lighting (precision of the size measurement strongly depends on the beam uniformity). The system can detect cold ceramic particles down to around 10 µm, and metallic ones down to 6µm.
  Typical applications of the CPS-2000 are:
  • To evaluate what fraction of the injected material is not heated correctly (correlated with poor DE)
  • To determine location of the cold particles into the spray plume
  • To monitor cold spray, sand or grit blasting processes

And more...

    Click here to see the DPV Centering Video (en)
  To know more about this system or to receive a quotation, please do not hesitate to contact us at: This email address is being protected from spambots. You need JavaScript enabled to view it.
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