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Optimize Schlieren Projects with Chronos High-Speed Cameras
Optimize Schlieren Projects with Chronos High-Speed Cameras
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Written by Roberto Gonzalez, PhD
Updated over 10 months ago

Chronos high-speed camera systems offer the portability, ease-of-use, and video quality required by Universities and R&D Labs to understand Schlieren Imaging in-depth.

What is Schlieren Imaging?

Schlieren Imaging is a technique that allows us to see the subtle changes in the refractive index of fluids. It can reveal the flow of air, temperature variations, and shockwaves that are otherwise invisible to the naked eye.

How does Schlieren Imaging benefit from Chronos High Speed Cameras?

High-speed cameras coupled with a Schlieren visualization setup can capture rapid changes in air density or temperature that are not visible by the naked eye. A Chronos high-speed camera can unlock the intricacies of Schlieren Imaging processes in preparation for detailed analysis and visualizations, all with unparalleled efficiency.

Key Benefits:

  • All-in-One: Completely standalone, untethered operation with a 5″ inch touchscreen display and battery for portability

  • Clear Imaging: Record events at over 1,000 FPS and capture distortions in light

  • Quick Playback: Review your Schlieren footage on your camera screen for in-depth analysis

  • Research Enhancement: Visualize, measure, and comprehend your Schlieren projects

Filmed with the Chronos 1.4 Monochrome High-Speed Camera, the Schlieren Imaging cut off percentage is increasing with the image intensity decreasing uniformly. The image was captured at 100 fps, exposure time was 250us. From left to right cut off percentage is 0, 25, 50, 75 and 100%.

How does Schlieren Imaging work?

In a uniform medium, light travels without deviation. However, when the medium is disrupted by changes in pressure or temperature, its density fluctuates, altering its refractive index.

As a result, a beam of light passing through this changing density can no longer follow a straight path; it bends and twists. Enter the “knife-edge,” a thin, rigid object strategically placed in the light’s path. It filters out the unaffected rays, allowing only those bent by the changing medium density to create the captivating images you’ll see on your screen.

Schematic diagram of the Schlieren Imaging setup.


Common Applications

  • Lenses Defect Testing

  • Shock Wave Testing in High Speed Fluids

  • Gas Leak Testing


If you anticipate the need to set up Schlieren imaging for your research needs, Kron Technologies is available to help. Please contact us for more information, and suggestions on the appropriate high-speed camera for your requirements.

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