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Time Resolved PIV Systems. Time Resolved PIV system. A global imaging system that has the ability to capture image fields (velocity fields) at orders of magnitude faster than standard PIV systems A PIV system that makes flow measurements with very high update rates

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time resolved piv system
Time Resolved PIV system
  • A global imaging system that has the ability to capture image fields (velocity fields) at orders of magnitude faster than standard PIV systems
      • A PIV system that makes flow measurements with very high update rates
      • Can provide information about
        • Flow dynamics, flow transport
        • Motion of structures in the flow
      • An integrated system with high frame rate camera and high speed pulse laser
time resolved piv system1
Time Resolved PIV system
  • Provides instantaneous flow fields - Spatial and temporal nature of the flow field
      • Special algorithms form TSI (e.g., Hart Correlation)
        • to increase spatial resolution (more flow details, structures in the flow)
  • Interest in knowing evolution of the flow
      • Need to make velocity measurements with high update rate, typically in KHz or higher
  • Time Series Analysis package
      • Provides Time history, time series plots, statistics and spectrum analysis
system components
System Components
  • High Repetition rate Laser
    • Model YLF-HS dual laser
    • Model YAG-HA single laser
  • Laser light sheet optics
  • High Speed camera system
    • Photron SA3 Series Cameras
  • Model 610035 LaserPulse Synchronizer
  • Stereoscopic assembly
  • Insight 3G image capture and analysis package
example high speed camera system
Example High Speed Camera System
  • High Frame rate camera with integrated sensor protective mask and F-mount lens mount. The camera system included the Nikon 28 mm lens and all interface cables.
    • Pixel resolution 1024 by 1024 pixels
    • Sensor type CMOS
    • Dynamic range 12-bit
    • Frame rate per second 2000 (1024 x 1024 pixels)
      • 4000 (1024 x 512 pixels)
      • 6000 (512 x 512 pixels)
      • 8000 (1024 x 256 pixels)
      • 20000 (256 x 256 pixels)
  • Memory Up to 8GB
  • Communication Gigabit Ethernet
insight 3g software
INSIGHT 3G software
  • Configure for single and stereo arrangement of PIV systems
  • Image capture and analysis
  • Incorporated with Matlab for Time Series analysis to provide time history, time series, statistics and spectrum analysis
  • Direct link to TecPlot for vector fields presentation
measurements in engines
Measurements in Engines

Courtesy: University of Orleans

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