High-speed low-cost PIV with the pulsed laserdiode: Examples

Recently, I asked Prof. de Payrebrune from the University Kaiserslautern / Computational Physics in Engineering if they could lend me their Chronos 1.4 low-cost high-speed camera for some tests. She agreed to support the development of PIVlab which is very cool and kind of her!! Now I did some tests with the camera (captures data at 1.3 megapixels at 1000 Hz) and my new LD-PS pulsed laser diode. The LD-PS has a built-in synchronizer, so it triggers the Chronos and can also do frame-straddling. The Chronos has absolutely brilliant trigger characteristics, as you have complete control over the exposure timing. Now I am not limited to an interframe-time of 1/1000s anymore, but can go down to 10 µs. 
When capturing data at 1000 fps, the duty cycle of the illumination becomes quite high. So I added two little fans to the LD-PS housing. Now a duty cycle of up to 50% can be reached without the laser or the driver becoming too hot.
The awesome Chronos high-speed camera from krontech.ca


Latest version LD-PS pulsed laser diode

Frame-straddling with the LD-PS and the Chronos 1.4 helps to minimize the interframe time down to 10 µs.


I captured some videos that can be seen here. Without the pulsed laser and the frame straddling, these analyses would not be possible:

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