Rainfall rate gauge

Details Rainfall rate gauge Rainfall rate gauge

1995-02-01

1996-04-09

Chilcot, Richard

Measuring and testing

Meteorology

Precipitation

7317023, G01W 114

Patent

active

055050824

ABSTRACT:
A rainfall rate gauge contains a turbine which turns on a horizontal axis and floats in a chamber about half full of water. Turbine motion is measured and electronically recorded by an optical sensor. The blades of the turbine have a reverse rake so that the a portion of the water captured in each bucket is carried above the water surface before being released when the blade tip breaks the water surface. This arrangement prevents unrestrained free wheeling of the turbine, and results in more precise measurement, particularly at very low rainfall rates.

REFERENCES:
patent: 1118259 (1914-11-01), Beard
patent: 3127769 (1964-04-01), Stucky et al.
patent: 3229519 (1966-01-01), Nilsson
patent: 3978723 (1976-09-01), Davis
patent: 4287762 (1981-09-01), Baer
patent: 4644786 (1987-02-01), Jacobsen et al.
patent: 4827766 (1989-05-01), Nelson
patent: 5125268 (1992-06-01), Caron
patent: 5408892 (1995-04-01), Kawanami et al.

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