Oscillatory anemometer

Details Oscillatory anemometer Oscillatory anemometer

1985-10-11

1987-06-09

Ruehl, Charles A.

Measuring and testing

Navigation

Leeway incidence or side-slip

7386121, G01W 104

Patent

active

046711082

ABSTRACT:
An oscillatory anemometer for simultaneously indicating wind speed and direction employs a main member free to rotate under the influence of aerodynamic forces about a first axis and a fin mounted near the downwind end of the main member for pivotal movement about a parallel axis betwen two stable positions. The fin swings between the stable positions forcing the main member through inertial overshoot into oscillation about a mean alignment with the wind direction. The frequency of main member oscillation is linearly proportional to wind speed.

REFERENCES:
patent: 2061189 (1936-11-01), Dungan
patent: 2809520 (1957-10-01), Richard, Jr.
patent: 3273389 (1966-09-01), Waugh

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