University of Illinois Extension

Anemometer

An anemometer is an instrument that measures wind speed. It is usually made of several small cups attached to a vertical shaft. This is called a cup anemometer. As wind causes the cups and shaft to turn, the speed of turning can be used to calculate wind speed. This can be shown as a numerical readout. A windmill anemometer is another type.

Anemometer

Anemometer
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Windmill anemometer

Windmill anemometer
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