An anemometer is an instrument that measures the speed of air. There are many types of it. The most commonly used in meteorological stations is the wind cup anemometer. It consists of three parabolic cone empty cups fixed on the bracket at 120° to each other to form the sensing part. The concave surfaces of the empty cups are all in one direction. The entire induction part is installed on a vertical rotating shaft. Under the action of the wind, the wind cup rotates around the shaft at a speed proportional to the wind speed.
