what is anemometer?

what is anemometer?

An Anemometer is an instrument that measures the velocity of air, also known as an anemometer. There are many kinds of it, and the most commonly used weather station is the wind cup anemometer, which is composed of three parabolic cone empty cups fixed on the support at 120 degrees each other, and the concave surface of the empty cup is in one direction. The whole induction part is installed on a vertical rotating shaft, and under the action of the wind, the wind cup rotates around the axis at a speed proportional to the wind speed.

How does anemometer work

The principle of Anemometer is to measure wind speed based on heat conduction or mechanical force.

Taking the wind cup anemometer as an example, its principle is to use the wind to drive the wind cup to rotate, and calculate the wind speed by measuring the speed of the wind cup. Specifically, when the wind blows through the cup, the wind drives the cup to rotate, and the speed of rotation is proportional to the wind speed. By measuring the speed of the wind cup, the wind speed can be calculated.

In addition, there are Anemometers that use hot wires or hot films to measure wind speed. When the wind blows over the hot wire, the hot wire is cooled, and the degree of cooling is related to the wind speed. By measuring the temperature change of the hot wire, the wind speed can be calculated.

The principle of Anemometer is varied, and the suitable principle is chosen according to different types and occasions of use.

Anemometer (anemometer) is used in a wide range of scenarios, the following are some of the main application scenarios:

Meteorological observation: In meteorological observation, anemometer is used to measure wind speed and direction, and is one of the basic instruments for meteorological observation. Wind speed and direction data measured by anemometers can be used to monitor and forecast weather systems.

Environmental protection: In the field of environmental protection, anemometers can be used to measure wind speed and direction, assess the diffusion and migration of air pollutants, and provide a scientific basis for environmental governance and protection.

Energy utilization: In the field of wind energy utilization, anemometers are used to measure wind speed and direction and assess the development potential of wind energy resources. For example, in a wind farm, an anemometer can be used to calibrate and maintain the power curve of a wind turbine.

Aerospace: In the aerospace field, anemometers are used to measure wind speed and direction around aircraft to provide necessary data support for aircraft design and flight.

Laboratory research: In the experimental research of fluid dynamics, heat and mass transfer, the use of anemometers can measure the speed and direction of the fluid, which provides important parameters for the acquisition and analysis of experimental data.

In short, the use of Anemometer is very wide, involving meteorology, environmental protection, energy, aerospace, laboratory research and other fields.