Accession Number : AD0676991

Title :   FEASIBILITY STUDY FOR AIRBORNE ICE-CRYSTAL DISDROMETER.

Descriptive Note : Final rept. 15 Feb 67-14 Aug 68,

Corporate Author : TECHNICAL OPERATIONS INC BURLINGTON MASS

Personal Author(s) : Ward,John H. ; Dyes,William A.

Report Date : 13 SEP 1968

Pagination or Media Count : 19

Abstract : 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)

Descriptors :   (*ATMOSPHERIC PRECIPITATION, PARTICLE SIZE), (*CAMERAS, LASERS), PHOTOGRAPHY, FEASIBILITY STUDIES, RAINDROPS, ICE, CRYSTALS, AIRBORNE, RUBY, INSTRUMENTATION, TEST METHODS

Subject Categories : Meteorology
      Lasers and Masers
      Holography

Distribution Statement : APPROVED FOR PUBLIC RELEASE