Weather stations are a popular project for experimenting with various environmental sensors, and for wind speed and direction the choice is usually a simple cup anemometer and wind vane.

Inevitably, mistakes happen, Mother Nature intervenes, and balloons go off the prescribed path through New York.

In the days before GPS satellites, radiosondes relied either on an altimeter or a paddlewheel a bit like an anemometer mounted on a horizontal axis to detect the altitude of the package ...

As a rule of thumb: The rain collector should be placed with at least 5 feet horizontal clearance from ... Similar to a rain collector, the anemometer should reflect the wind patterns as if ...

Horizontal-axis wind turbines (HAWT ... Wind turbines contain many parts. The anemometer tracks wind speeds and transfers measurements from the wind vane to the controller, a component which starts ...

The propellers worked as rotating wings; their spinning motion produced a horizontal lift ... counter to measure engine rpms, and an anemometer to measure distance. Used for taking off, the ...

The optimal TSR for horizontal-axis, three blade turbines ... The blade tip speed is then 2ΠR/t and this can be divided by the wind speed from a digital anemometer to give a field measurement of the ...

These variables are measured over time by weather stations and anemometers to assess wind ... and type (vertical or ...

With westerly winds we find similar statistics using met or nacelle cup anemometers. The field studies validate ... eddies are directly modified by the surface in such a way that horizontal coherence ...