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https://hdl.handle.net/11681/5619| Title: | A cloud droplet camera |
| Authors: | Itagaki, Kazuhiko |
| Keywords: | Cloud droplets Water droplets Photography Photographs Photographic analysis Photometric analysis Photogrammetry Fog Water content Measurement Clouds Particles Equipment Instruments |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Technical report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 185. |
| Description: | Technical Report Abstract: The problems encountered in measuring the size distribution of water droplets by impactor may be solved by making in situ photographs of air-suspended droplets. Exposure must be sufficiently short to stop the moving droplets and is accomplished by using electronic strobes having a nominal duration of about 1.2 μ sec at medium range. The almost linear relationship, up to 200 microns, between actual droplet size and ring diameter was determined from photographs of droplets suspended by fibers and droplets produced by an atomizer. Camera and impactor results of size distribution in atomizer generated fog, steam fog and natural fog are summarized. Comparing the advantages and disadvantages of previously developed photographic, electronic, and laser apparatus the present procedure may result in a standard method of cloud or fog observation. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/5619 |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CRREL-Technical-Report-185.pdf | 7.11 MB | Adobe PDF |  View/Open |