The basic concept and application scope of anemometers
An anemometer, as the name suggests, is an instrument that measures the velocity of air. There are many types of it, and the commonly used one in meteorological stations is the wind cup anemometer. It consists of three parabolic cone empty cups fixed on a bracket at an angle of 120 ° each, forming an induction part. The concave surface of the empty cup is in the same direction. The entire sensing part is installed on a vertical rotation axis, and under the action of wind, the wind cup rotates around the axis at a speed proportional to the wind speed. Another type of rotary anemometer is the propeller type anemometer, which consists of a three or four bladed propeller as the sensing part. It is installed at the front end of a wind vane to align it with the direction of the wind at any time. The blade rotates around the horizontal axis at a speed proportional to the wind speed.
Instruments that measure the speed of wind may often overlook the speed of wind because we believe that wind speed has nothing to do with us. In fact, wind speed is closely related to many industries, and many industries require the use of anemometers. Below, we will give some examples to take a look.
During the construction of the table tennis and badminton venues for the 2008 Beijing Olympics, anemometers were needed to measure the temperature. The venue was equipped with air conditioning, and the designer originally intended to deliver air conditioning through large ventilation openings. However, after measuring with an anemometer, it was found that the wind speed of the venue's air conditioning had an impact on table tennis and badminton competitions. If the wind speed was too strong, it would cause the ball to deviate during sports. After careful consideration, the designer decided to change the large ventilation openings to small ventilation openings, which means installing small air outlets on each seat to achieve the effect of air conditioning. Although the cost of this idea is relatively high, after measuring with an anemometer, the venue meets the airflow standards required by the International Olympic Committee.
There are other applications of anemometers in the Beijing Olympics, such as sailing competitions, rowing competitions, field shooting competitions, etc., which require the use of anemometers for measurement. Nowadays, anemometers are relatively advanced, which can not only measure wind speed, but also measure wind temperature and airflow. There are many industries that require the use of anemometers, but people have not yet realized it. With it, your work may be easier and the quality of work may be higher.
