Accession Number:

AD0600836

Title:

PROTOTYPE DEVELOPMENT FOR METEOROLOGICAL INSTRUMENTS.

Descriptive Note:

Final rept.

Corporate Author:

TECHNICAL OPERATIONS INC BURLINGTON MASS

Report Date:

1964-01-13

Pagination or Media Count:

83.0

Abstract:

Three types of instruments have been designed, fabricated, and tested for measuring various meteorological parameters 1. A raindrop spectrometer using the principle of right-angle scattering of light is capable of resolving raindrops 0.2 mm to 5 mm diameter to within a precision of 10 while maintaining a counting rate of at least 100 drops per second. It has been designed to fit within the envelope of an external wing tank for the C-130 type aircraft. 2. A liquid-water-content meter that uses a capillary collector head for collecting the water was completely automated for unattended operation in the field. This instrument was fully tested at the AFCRL Fog Field Site at Otis Air Force Base, Massachusetts, during the period from July through September of l963. 3. A droplet disdrometer utilizing the coherent light available from an optical maser laser to illuminate the water droplets in fog was developed to determine the size and distribution of the particles. The light illuminating these droplets was diffracted into rings, which were photographed. The size and distribution of the droplets were then determined from these ring patterns on the film. This instrument was also tested at the AFCRL field site. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE