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Successful test of Ultra High-Speed camera

13th March 2018


Specialised Imaging reports that The Institute of Engineering Thermodynamics (LTT) at FAU Erlangen-Nürnberg (Germany) tested a Kirana Ultra High-Speed camera to visualise the transient opening process of fuel-injectors in one of their high-pressure injection chambers.

The LTT has an international reputation for building and running injection chambers to investigate the transient spray processes within fuel-injectors used in internal combustion engines. Employing an experimental approach of continuously flushed chambers enables high injection rates and therefore time efficient experiments. This, in combination with the wide range of variable operation parameters, such as chamber pressure, chamber temperature, fuel pressure, fuel temperature, makes the chambers attractive both for fundamental research and testing under application conditions. 

Conventional high-speed imaging techniques are already well-established in spray research, but are not able to resolve very fast processes such as spray fluctuations or the injector opening in high spatial resolution, as the fuel leaves the nozzle with up to 300 m/s in gasoline injection and even higher velocities when using diesel fuel.

The Kirana Ultra High-Speed camera from Specialised Imaging closes this gap, being able to take 180 consecutive high quality images at frame rates of up to 5MHz. The full resolution of the Kirana camera is maintained independently of its frame rate, enabling it to achieve high spatial and temporal resolution at the same time. 

Incorporating a proprietary hybrid camera sensor, the compact Kirana ultra high speed video camera can deliver high resolution and high speed (up to 5 million frames per second). The full resolution of this video camera is maintained at all speeds. Comprehensive triggering facilities, highly accurate timing control and a wide range of output signals, coupled with a software package, simplifies image capture and analysis. Full remote operation using Ethernet connectivity comes as standard enabling the Kirana to be easily integrated into almost any environment.







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