Multiple-spark photography with image separation by color coding.
The application of color-coded image separation to multiple-spark photography provides a simple method for recording shadow or schlieren photographs with arbitrary magnification, extremely high frame rate, short exposure time per frame, and no parallax. A color separation, multiple-spark camera is described which produces a sequence of three frames at 5 x magnification with a maximum frame rate of 10(6)/sec and an exposure time per frame of about 0.3 microsec. Standard 10.16-cm x 12.7-cm (4-in. x 5-in.) color film is used. This camera has been useful for observing liquid atomization processes and spray motion, since it enables direct measurement droplet size, location, velocity, and deceleration.
Kent
J C
JC