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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


  • Time resolved measurements high frame rate stereopiv system
    Time-resolved measurementsHigh Frame-rate StereoPIV System


    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


    Time resolved measurements high frame rate system
    Time-resolved measurementsHigh Frame Rate System

    INSIGHT 3G







    Measurements in engines
    Measurements in Engines

    Courtesy: University of Orleans