Patent · US Expired

Wind sensor

US3956932A · kind A · utility

3Cited by

3References

10Claims

0Family size

Inventors

James C. Administrator of the National Aeronautics and Space Fletcher
James B. Stephens · La Cañada Flintridge, US
Eric G. Laue · San Marino, US

Key dates

Filing date	Jan 29, 1975
Grant date	May 18, 1976
Priority date	—
Expiry date	Jan 29, 1995

Classification

Technology area (CPC G)Physics
CPC primaryG01P13/02
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Apparatus for sensing the temperature, velocity, and direction of the wind, including four temperature-dependent crystal oscillators spaced about an axis, a heater centered on the axis, and a screen through which the wind blows to pass over the crystals. In one method of operation, the frequency of the oscillators is taken when the heater is not energized, to obtain the temperature of the wind, and the frequencies of the oscillators are taken after the heater is energized to determine the direction and velocity of the wind. When the heater is energized, the wind causes the downwind crystals to achieve a higher temperature than the upwind crystals, and with the magnitude of the difference indicating the velocity of the wind.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.