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An electronic Cranz–Schardin camera

1991; American Institute of Physics; Volume: 62; Issue: 2 Linguagem: Inglês

10.1063/1.1142129

1527-2400

B. Bretthauer, G. E. A. Meier, Bolesław Stasicki,

Image Processing Techniques and Applications

An electronic high-speed multiple-image camera based on the Cranz–Schardin principle has been developed. High-power LEDs are used as a light source. Frames are recorded by a system of eight CCDs and an eight channel image processor enabling a series of eight subsequent images at full-frame (512× 512) resolution or more images (up to 80) at a lower resolution. The maximum framing frequency is 10 MHz. The advantages upon the classical spark illumination and photographic techniques are mainly the precise electronic control, the immediate access to the frames, the on-line image processing and the low cost of the system. Examples of gas- and two-phase flow visualization are presented.