METHOD FOR REMOTE MEASUREMENT OF WIND VELOCITY Russian patent published in 2012 - IPC G01W1/04 

FIELD: physics.

SUBSTANCE: at two points in the atmosphere at given height and at a certain distance from each other, two artificial point-sources of sound are formed, which synchronously emit an acoustic pulse each. These two acoustic pulses are then received at a point lying on the surface of the earth symmetrically about these sound sources. The propagation time of sound from the first and second sources to the reception point is measured and the wind velocity component is calculated from the relationship: V_v-L(t₂-t₁)/2t₁t₂sinα, where v_v is the wind velocity vector of a collinear line linking the sound sources, L is the distance between the sound sources and the reception point, t₁ is the propagation time of the sound pulse from the first sound source to the reception point, t₂ is the propagation time of the sound pulse from the second sound source to the reception point, α is the angle between the vertical which passes through the reception point and the direction of the sound source.

EFFECT: larger height for remote measurement of wind velocity, high time resolution of the method and smaller weight and size characteristics of devices realising the method.

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