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The working principle of the ultrasonic wind speed and direction sensor is to use the ultrasonic time difference method to measure the wind speed. The speed of sound in the air is superimposed on the speed of the airflow in the wind. If the ultrasonic wave travels in the same direction as the wind, its speed will increase; otherwise, its speed will decrease. Therefore, under the fixed detection conditions, the propagation speed of ultrasonic waves in the air can correspond to the wind speed function. The precise wind speed and direction can be obtained by calculation. Since the speed of a sound wave is greatly affected by temperature when it travels in the air; this anemometer detects two opposite directions on two channels, so the effect of temperature on the speed of the sound wave is negligible. It is lightweight, has no moving parts, is rugged, requires no maintenance and field calibration, and outputs both wind speed and direction.

Customers can choose the wind speed unit, output frequency and output format according to their needs. Heating or analog output can also be selected as required. It can be used with computers, data collectors or other acquisition equipment with RS485 or analog output. If necessary, multiple units can also be used to form a network. Because it overcomes the inherent defects of mechanical anemometers well, it can work normally all-weather and long-term, and is used more and more widely. It will be a strong replacement for mechanical anemometers.

As a natural phenomenon, wind itself contains huge energy, which can have a huge impact on human activities. These effects include both positive and negative aspects. The use of ultrasonic wind speed and direction sensors can prevent losses caused by strong winds in advance. The ultrasonic wind speed and direction sensor realizes the wind speed and wind direction through a highly integrated structure, which can realize 24-hour continuous online monitoring of outdoor meteorological parameters, and output the two parameters to the user at one time through the digital communication interface. It can be widely used in urban environmental monitoring, wind power generation, meteorological monitoring, bridges and tunnels, sailing ships, aviation airports and other fields, without on-site maintenance or calibration.