FEASIBILITY STUDY FOR AIRBORNE ICE-CRYSTAL DISDROMETER

FEASIBILITY STUDY FOR AIRBORNE ICE-CRYSTAL DISDROMETER

A prototype ice-crystal hologram camera was fabricated and tested. The instrument will record ice crystals and raindrops in the 0.1 mm to centimeter size range over a sample volume 50 cm deep. An off-axis coherent reference beam is produced in the camera by use of a grating and pinhole spatial filte...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Ward,John H, Dyes,William A
Format: Report
Sprache:eng
Schlagworte:
AIRBORNE
ATMOSPHERIC PRECIPITATION
CAMERAS
CRYSTALS
DISDROMETERS
FEASIBILITY STUDIES
Holography
ICE
INSTRUMENTATION
LASERS
Lasers and Masers
Meteorology
PARTICLE SIZE
PHOTOGRAPHY
Q SWITCHING
RAINDROPS
RUBY
TEST METHODS
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Beschreibung
Zusammenfassung:A prototype ice-crystal hologram camera was fabricated and tested. The instrument will record ice crystals and raindrops in the 0.1 mm to centimeter size range over a sample volume 50 cm deep. An off-axis coherent reference beam is produced in the camera by use of a grating and pinhole spatial filter. Motion of the particles is stopped by a Q-switched ruby laser. This design is adaptable to airborne applications. (Author)