Analytical Technologies Singapore

lavision

LaVision published a paper about the novel Object-aware Lagrangian Particle Tracking (OA-LPT) scheme in the Measurement Science and Technology journal

The measurement of flows around objects such as cars, airfoils and maritime structures often poses major challenges for optical flow diagnostics methods such as Tomo-PIV or Lagrangian Particle Tracking (LPT)/Shake-the-Box (STB) within the measurement fields. Also, many flow reconstruction algorithms simply do not have the capabilities of incorporating such object information.


For this reason, measurements are often limited to observations directly behind the object (characterization of wake flows) or to the stitching of averaged flow fields in sub-sampled regions in order to avoid having negative impacts on the measurement data.


To solve this practical problem, LaVision introduces the novel Object-aware Lagrangian Particle Tracking (OA-LPT) method to seamlessly integrate the knowledge about the presence of view-obstructing objects in the measurement domain during the 3D particle reconstruction.
It minimizes the occurrence of reconstruction artifacts and provides a measurement approach for instantaneous 360° LPT/STB measurements around the objects of interest.

LaVision published a paper about the novel Object-aware Lagrangian Particle Tracking (OA-LPT) scheme in the Measurement Science and Technology journal Read More »

LaVision launches the next generation of PIV cameras – the Imager CX3p Camera Series!

All the advantages of the Imager CX3 camera series, which was successfully introduced last year, were the basis for this further development.

The small and compact cameras of the Imager CX3 camera series, which are equipped with the innovative back-illuminated technology that enables incredible sensitivity and very low noise, have already been a resounding sales success. The small pixels enable very small fields of view for a given lens, and the hardware binning guarantees exceptional frame rates and therefore increased flexibility when using these cameras.

LaVision is now launching the unique Imager CX3p camera series, which is equipped with an integrated Scheimpflug mount for adjusting the angle between camera and lens (Scheimpflug angle) for C-mount and F-mount lenses.This ensures quick and easy alignment of the viewing direction, Scheimpflug angle and sensor orientation.

The integrated Scheimpflug mount offers three independent setting options for tilt, rotation and sensor orientation. All settings are supported by an intuitive DaVis software tool resulting in very quick and easy Scheimpflug adjustment.

Here you can watch our video, showing the easy handling of this camera with all its Scheimpflug settings as well as the adjustment of the Scheimpflug mount supported by our user-friendly DaVis software tool.

LaVision launches the next generation of PIV cameras – the Imager CX3p Camera Series! Read More »

Installation of PIV system from LaVision

PIV set-up & calibration with LaVision with laser from the top
Side profile of PIV set-up
This LaVision High-Speed 2D PIV System is employed to acquire comprehensive insights into the swash flows generated by a train of solitary waves and the concurrent turbulence structure. This system conducts two-dimensional velocity measurements utilising a 100-Hz high-speed particle image velocimetry (HSPIV) technique.
 
LaVision’s flow field imaging laser systems, known as FlowMaster, leverage cutting-edge Particle Image Velocimetry (PIV) techniques.

The study of turbulent combustion greatly hinges on flow-chemistry interactions. Our high-speed laser imaging technology, which incorporates both PIV and OH-PLIF simultaneously within the same light sheet plane, enables the exploration of these intricate flow-flame interactions inherent in phenomena like ignition and flame extinction processes. LaVision’s laser imaging framework uniquely facilitates such concurrent PIV and PLIF measurements, supported by our established FlowMaster and FlameMaster systems, both utilising the DaVis platform for synchronised image capture and data processing.
PIV components: Programmable Timing Unit (on top of table)
Close up look of PIV highspeed camera (bottom)
LaVision creates personalised solutions using the different techniques such as Particle Imagine Velocity PIV – based on your experiments & projects. Read more about the different techniques available; alternatively you may contact us for more information. 
Running through LaVision software DaVis
Training staff of FlameMaster series

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FlameMaster Setup & Installation

Testing of the measurement of flame temperature using FlameMaster
Calibration setup using a filament lamp

LaVision’s Two-Color Pyrometry setup provides a robust system for temperature measurements. It demonstrates the precise measurement of flame temperature, showcasing the system’s accuracy and capability. Additionally, the calibration process is conducted using a filament lamp, ensuring the system’s reliability and accuracy through meticulous calibration procedures.

LaVision Flamemaster Software

The FlameMaster inspex imaging systems apply flame emission spectroscopy to combustion processes.

​The flame emission (chemiluminescence) of flame radicals like OH*, CH*, C2* is used to e.g. visualise the reaction zone or to monitor flame stoichiometry via emission ratios of such radicals. 2-colour pyrometry (blackbody radiation) is used to measure temperature fields in sooty flames.

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