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Anemometer

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An anemometer is a device for measuring wind speed, and is one of the instruments found in a weather station. The familiar cup-anemometer was invented in 1846 by John Thomas Romney Robinson.

Other types of anemometers include:

hot wire or hot plate sensors, which measure the cooling of a heated element immersed in the wind
ultrasonic sensors, which measure the Doppler shift of sound waves by the moving air.

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