What are the main areas of application for anemometers?
An anemometer is an instrument that measures the velocity of air. It has a wide variety of types, with wind cup anemometers commonly used in meteorological stations;
It consists of three parabolic cone empty cups fixed on a bracket at an angle of 120 ° each, forming an induction part, with the concave surfaces of the empty cups all pointing 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 blade or four blade propeller as the sensing part;
Install it at the front end of a wind vane so that it is always aligned with the direction of the wind. The blade rotates around the horizontal axis at a speed proportional to the wind speed.
The application of anemometers is very extensive, and they can be flexibly applied in all fields, widely used in industries such as electricity, steel, petrochemicals, and energy conservation;
There are other applications 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, and recommended industries to use include offshore fishing, various fan manufacturing industries, industries that require exhaust systems, and so on.
The main uses of anemometers are:
1. Measure the average velocity and direction of flow.
2. Measure the pulsating velocity of incoming flow and its spectrum.
3. Measure the Reynolds stress in turbulence and the velocity and time correlation between two points.
4. Measure wall shear stress (usually using a hot film probe placed flush with the wall, similar to the principle of dedicated line speed measurement).
5. Measure fluid temperature (by measuring the change curve of probe resistance with fluid temperature in advance, and then determining the temperature based on the measured probe resistance).
