What is the principle of ultrasonic weather station?

What is the principle of ultrasonic weather station?

　　A weather station is an instrument used to monitor parameters such as air temperature and humidity, wind speed and direction. Currently there are both traditional wind cup type and ultrasonic type in the market. What is the principle of ultrasonic weather station? The ultrasonic time difference method is used to measure wind speed, and it is light weight and can monitor both wind speed and wind direction.

　　What is the principle of ultrasonic weather station?

　　Using four ultrasonic probes to accurately measure the current wind speed and direction through the time difference of ultrasonic wave propagation in the air, its measurement accuracy is higher, and the error is lower, and the output of data is very stable. In order to reduce electromagnetic interference, digital filtering technology is used to enhance the ability of the device to resist interference. In addition, the ultrasonic type has strong environmental adaptability and can work normally even in severe winter.

　　1、Resistant to severe cold

　　Winter outdoor temperature is low, if not cold treatment, ultrasonic probe is easy to freeze, thus affecting the normal work. Ultrasonic type is equipped with automatic heating function, which can be used normally even under the strict weather of -40°. Therefore, the weather data monitoring function can be realized even when installed in cold areas.

　　2、Wide monitoring range

　　The ultrasonic sensor can be used not only to monitor the current regional wind speed and direction, air temperature and humidity, atmospheric pressure and rainfall and other meteorological parameters, but also to add soil sensors to monitor soil moisture, PH value, conductivity, temperature and other parameters. In addition, the sensor can also achieve integrated monitoring of environmental factors such as carbon dioxide, oxygen, ozone, sulfur dioxide, VOC and other parameters.

　　3、Strong stability

　　Traditional weather stations consist of multiple sensors combined with rotating parts such as wind cups, which have a certain risk of breakage in bad weather and low measurement accuracy when the wind speed is not high. Ultrasonic sensors have a compact structure with few moving parts overall, so the data is more accurate and the instrument is more robust.

Ultrasonic weather stations of this type do not require maintenance and field calibration and are able to measure weather data accurately, in addition it is connected to computers and collectors for real-time monitoring of data.