Wind direction sensor Output Modbus/RS485/0-5V/4-20mA for agriculture and transportation

The wind direction sensor is a type of wind direction information from the wind direction arrow, feeling the external wind direction information, and transmits it to the coaxial code disk, and at the same time outputs a physical device with the corresponding value of the wind direction.

The wind direction sensor can measure the near -ground wind direction in the outdoor environment. According to the working principle, it can be divided into photoelectric, voltage, and compass types. Usually used with wind speed sensor.

The wind direction sensor is composed of wind cups, sensor main body, circuit module, transmission cable and other devices.

The wind cup of the wind direction sensor is usually manufactured by high weather, high strength, corrosion and waterproof metal;

The subject of the sensor uses aluminum-magnesium alloy forming, and the internal circuit is sprayed with three-proof paint treatment to adapt to the harsh environment; the circuit module has extremely reliable anti-electromagnetic interference capabilities and high and low voltage protection capabilities, which can ensure that the host is at -20 ° C to 60 ° C, humidity 10% to 95% of the environment work normally.

Wind direction sensor is a physical device that detects and senses the wind direction information of the outside world by the rotation of the wind direction arrow, and transmits it to the coaxial code plate, and outputs the corresponding wind direction related value.

Usually the main body of the wind sensor adopts the mechanical structure of the wind vane, and when the wind blows towards the tail of the wind vane, the arrow of the wind vane will point to the direction of the wind blowing. In order to maintain the sensitivity to the direction, different internal mechanisms are also used to give the wind speed sensor to discern the direction. There are usually three types as follows:

Electromagnetic wind sensor: the use of electromagnetic principle design, due to the principle of more types, so the structure and different, some of these sensors have begun to use gyroscope chip or electronic compass as the basic components, its measurement accuracy has been further improved.

Photoelectric wind sensor: This wind sensor uses absolute Gray code disk as a basic component, and the use of a special customized code code to photoelectric signal conversion principle, can accurately output the corresponding wind direction information.

Resistive wind sensor: This wind sensor uses a structure similar to a sliding rheostat, the maximum and minimum values of the generated resistance are marked as 360° and 0°, when the wind vane is rotated, the slide bar of the sliding rheostat will rotate together with the top wind vane, and the different voltage changes generated can calculate the angle or direction of the wind.

Wind speed sensor is a common sensor that can continuously measure the wind speed and wind volume (wind volume = wind speed x cross-sectional area).

Wind speed sensors are broadly classified into mechanical (mainly propeller type, wind cup type) wind speed sensors, hot air wind speed sensors, Pitot tube wind speed sensors and ultrasonic wind speed sensors based on acoustic principles.

Wind direction sensor functional characteristics

The wind sensor is a professional meteorological instrument used to measure the horizontal wind direction of the wind. Its internal use of Hall angle sensor, and the choice of low inertia light metal wind vane response to the wind direction, when the wind direction changes, the tail rotates through the shaft rod drives the core magnet rotation, so in the output of the changing voltage signal. It can measure the wind direction of nature from 0-360 degrees starting from the north of the label, with high cost performance, can be widely used in meteorology, marine, environment, airport, agriculture and port, laboratory, industry and agriculture and transportation.