Anemometer Theory of Operation
The PS-2174 Weather/Anemometer Sensor uses a multi-blade microturbine to infer the wind speed perpendicular to the face of the turbine from the angular velocity of a low-friction, low-inertia fan blade.
A voltage is generated in a detector coil, by movement of a magnet located in the hub of the blade. This voltage is digitzed and the time between pulses is measured, which is inversely proportional to the angular velocity.
Creation Date: 08/8/2011