A variable-frequency light synchronized with a high-speed motion-picture camera to provide very short exposure times

Walter F. Lindsey, Joseph Burlock
naca-tn-2949
May 1953


A new high-speed photographic technique has been developed which employs a variable-frequency light synchronized with a commercially available 16-millimeter high-speed motion-picture camera without appreciable alterations to the camera. The technique is described and results obtained by this technique of photographing the flow past models in a wind tunnel employing the schlieren method of flow visualization are presented.

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