Ultrasonic wind speed and direction sensor. It is a wind direction measuring instrument developed based on the principle of ultrasound. Use the transmitted sound pulses. Measure the time or frequency difference at the receiving end to calculate the wind speed and direction. It is widely used in the measurement of wind direction and speed in greenhouses, environmental protection, weather stations, ships, docks, and breeding. Support customization, sturdy and durable. It can cope with various harsh environments such as wind, sun, rain, and frost.
The working principle of ultrasonic wind speed and direction instrument
Use the ultrasonic time difference method to achieve wind direction measuring instrument. The speed of sound in the air. Will be superimposed with the air velocity in the wind direction. If the ultrasonic wave travels in the same direction as the wind, its speed will increase. Conversely, if the propagation direction of the ultrasonic wave is opposite to the wind direction. It will slow down. Therefore, under fixed detection conditions. The speed at which ultrasonic waves propagate in the air can correspond to the wind speed function. The precise wind speed and direction can be obtained by calculation. As sound waves propagate in the air, its speed is greatly affected by temperature.
Advantages of integrated wind speed and direction sensor
No start-up wind speed limit, zero wind speed work, no angle limit. 360 ° omni-directional, wind speed and wind direction data can be obtained at the same time. No moving parts, low wear and long service life. Using acoustic wave phase compensation technology, high precision and fast response speed. Using random error recognition technology. Even under strong winds, the low dispersion error of the measurement can be ensured, and the output can be more stable. Engineering plastic shell, lightweight design. It is portable and easy to install and disassemble. The signal access is convenient and supports 485-RTU. No maintenance and on-site calibration are required.