Accession Number : ADD015450

Title :   Method and Apparatus for Acoustically Measuring Rainfall.

Descriptive Note : Patent, Filed 8 Jul 92, patented 30 Jun 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Caron, Albert B

Report Date : 30 Jun 1992

Pagination or Media Count : 7

Abstract : A method and apparatus are provided for acoustically measuring precipitation rates and total amounts of rainfall. The rainfall is collected in a reservoir and drained through a gravity feed tube system. The gravity feed tube system receives a steady flow, of rainfall draining from the reservoir and converts the steady flow into drops by means of surface tension within the tube system. The formed drops exit the tube system and impact a surface that is acoustically responsive to the impact. The acoustically responsive surface is monitored to count the number of drops impacting same, wherein the number of drops counted is indicative of the precipitation rate and total amount of rainfall.

Descriptors :   *PRECIPITATION, *RAINFALL, *PATENTS, *ACOUSTIC DETECTORS, DROPS, FLOW, GRAVITY, IMPACT, RATES, RESERVOIRS, STEADY FLOW, SURFACE TENSION, TUBES, DRAINAGE, MEASURING INSTRUMENTS

Subject Categories : Meteorology
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE