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时间分辨PIV (TR-PIV)

FlowMaster Time-Resolved (High-Speed) PIV systems measure velocity and acceleration fields and turbulence quantities of transient flow phenomena. Correlated velocity fields are acquired at frame rates up to 100 kHz realized with state-of-the-art high-speed CMOS cameras and high repetition rate lasers. Advanced multi-frame correlation algorithms enable a higher dynamic velocity range and spatial resolution of the velocity field. From correlated velocity data DaVis TR-PIV software extracts flow features in time and space such as:

 
  • 加速度场
  • time tracks of vortices
  • 空间-时间相关
  • 功率谱
  • time dependence of POD-modes
  • fluid element tracking
 
 
LaVision has long-time experience in determining the most appropriate and cost-effectiveTR-PIV solution for a wide variety of flow applications. For tailoring the best FlowMaster TR-PIV system we carefully take into account the right choice of seeding particle and, depending on its size, the necessary illumination level and the system’s optimal repetition rate for successful time-resolved PIV measurements.
 
 
 
FlowMaster 时间分辨PIV
系统特色
  • large selection of state-of-the-art high-speed cameras:
    up to 4 Mpixel resolution and tens of kHz frame rates
  • single or dual cavity high repetition rate lasers
  • fully synchronized recording with LaVision’s PTU X timing controller
  • pyramid correlation for extended dynamic velocity range
  • time based filter for stray light suppression
  • enhanced temporal resolution using time-super-sampling
 
 
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高速激光器
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高速CMOS相机
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时间分辨湍流场
 
 

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