Ultrasonic wind speed and direction measurement: Technology-led wind detection

Ultrasonic wind speed and direction measurement: Technology-led wind detection

Mystery of the wind：

In the atmosphere of the earth we live in, wind is a very important meteorological element. It not only affects our daily lives, from weather changes to energy use, from aviation and navigation to urban planning and many other aspects are closely related to wind. With the continuous progress of science and technology, ultrasonic wind speed and direction measurement technology is gradually emerging, which provides a new means for us to understand the characteristics of wind more accurately and efficiently.

CDF-21A Rs485 4-20ma Ultrasonic Anemometer

Operating principle:

It mainly calculates the wind speed by measuring the time difference between the propagation of ultrasonic waves in the air. The sensor generally has two pairs of ultrasonic probes, which are mounted opposite each other. One of the pair of probes transmits ultrasonic waves and the other receives them. Because of the wind, ultrasonic waves travel at different speeds along and against the wind direction. According to the relationship between the ultrasonic propagation speed and the air velocity, the size and direction of the wind speed can be calculated by accurately measuring the time difference between the forward and reverse propagation of the ultrasonic wave between the two probes.

Ultrasonic Anemometer feature:

• High accuracy: 

Compared with traditional wind speed measuring equipment such as wind cup anemometer, it can measure wind speed more accurately, especially in the case of low wind speed.

• Fast response speed: 

It can quickly sense changes in wind speed and can monitor dynamic changes in wind speed in real time, which is very suitable for some application scenarios that require rapid response to changes in wind speed.

• No mechanical wear: 

Because it does not rely on mechanical rotating parts to measure wind speed, there is no mechanical wear problem like the wind cup anemometer, so the service life is relatively long and the maintenance cost is low.

• Ability to measure wind direction simultaneously: 

In addition to measuring wind speed, the wind direction can be accurately determined through the combination and calculation between different probes.

Application:

• Meteorological observation: 

It is widely used in weather stations to provide accurate wind speed and direction data for weather forecasting and meteorological research, and help meteorologists better understand atmospheric circulation and other conditions.

• Wind power generation: 

It plays an important role in evaluating wind energy resources of wind farms and optimizing the operation and control of wind turbines. It can accurately measure the real-time wind speed, so that the fan can adjust the blade Angle and speed according to the wind speed change, improve the power generation efficiency and equipment safety.

• Aerospace: 

In airport weather monitoring, it helps to ensure the safety of aircraft take-off and landing. In some scientific research projects in the aerospace field, accurate wind speed data is also needed to study the flight characteristics of aircraft in the atmosphere.

• Environmental monitoring: 

It can monitor the change of wind speed in the atmospheric environment, which is of great significance for the study of environmental problems such as the diffusion of pollutants and urban ventilation. For example, in urban planning, understanding wind speed and direction can lead to better layout of buildings and improved urban microclimate.

• Navigation field: 

Installed on the ship, it provides real-time wind speed and direction information for the navigation of the ship, helps the crew to adjust the navigation strategy and ensure navigation safety.

In short, ultrasonic wind speed and direction measurement technology with its excellent performance and wide application prospects, is leading the wind detection into a new era. It continuously promotes the development of related industries and the progress of scientific research, so that we can better understand and use wind as an important natural resource, and create more value and convenience for human production and life. With the further development of science and technology, it is believed that ultrasonic wind speed and direction measurement technology will continue to improve and innovate, and play a more important role in the future.