Radionuculide counting technique for measuring wind velocity and

Details Radionuculide counting technique for measuring wind velocity and Radionuculide counting technique for measuring wind velocity and

1982-11-24

1984-05-22

Goldstein, Herbert

Measuring and testing

Navigation

Leeway incidence or side-slip

7386171, 2503561, G01F 128, G01W 100

Patent

active

044494009

ABSTRACT:
An anemometer utilizing a radionuclide counting technique for measuring both the velocity and the direction of wind. A pendulum 12 consisting of a wire 13 and a ball 14 with a source of radiation 15 on the lower surface of the ball is positioned by the wind. Detectors 16, 17 and 18 are located in a plane perpendicular to pendulum 13 (no wind). The detectors are located on the circumference of a circle and are equidistant from each other as well as the undisturbed (no wind) source ball position. The ratio of the outputs of detectors 16 and 17, and the ratio of the outputs of detectors 17 and 18 are applied to a processor 23 to select from the data stored in the processor the wind velocity V and the wind direction .phi..
In a second embodiment of the invention (FIG. 10) the pendulum consists of a wire 27, a heavy ball 24, a string 28 and a lighter ball 25 with radiation sources on the lower surfaces of both balls.

REFERENCES:
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patent: 4206639 (1980-05-01), Balser
patent: 4334430 (1982-06-01), Hansen

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