The Application of Holography as a Technique for Size and Velocity Analysis of High Velocity Droplets and Particles

Paper presented at the Spring Meeting of the Association for High Speed Photography 6-8 April, 1970 in Liverpool.

Abstract

Hologrophy, as a technique for recording small high velocity particles or droplets, offers a considerable advantage over conventional photographic techniques. The application of the technique, using both single and multi beam systems, to entrained water sprays moving at typical velocities up to 70 m/second and electric arc welding sprays are discussed and results illustrated.

Theoretical considerations are briefly discussed, various “Q” switching, spatial filtering techniques and laser requirements are considered.

Notes

Paper presented at the Spring Meeting of the Association for High Speed Photography 6-8 April, 1970 in Liverpool.