TECHNIQUES FOR DROP SIZE MEASUREMENT BY DIRECT PHOTOGRAPHY AND ELECTRONIC PARTICLE SIZE ANALYSIS
Abstract
A photographic technique is described which overcomes many of the problems encountered in measuring the droplet size distribution in sprays. Droplet photographs were analysed using a Mullard Particle Size Analyser as recommended in the text and it is shown that, for photographs in which the depth of field is less than the spray thickness, a high contrast emulsion leads to errors. In general it is better to avoid out-of-focus drops, but a method is suggested which permits the results to be corrected provided the extent of the spray is large compared to the depth of field.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1965
- Accession Number
- AD0636972
Entities
People
- C. Ramshaw