MH-FSX integrated wind speed and direction sensor

1、 Product Overview:

Wind speed and direction are two common elements in meteorological monitoring, and the monitoring of wind speed and direction generally requires the use of wind speed and direction sensors (of course, wind bags and wind indicators can also monitor wind direction). The integrated wind speed and direction sensor combines the two to achieve simultaneous monitoring of wind speed and direction. The sensor is installed in the measured environment or at a weather station and can be used in conjunction with other weather station sensors! The wind cup type wind speed and direction sensor integrates the wind cup and the wind vane into one, reducing the volume and minimizing the mutual influence between the two, ensuring that the measurement data can accurately reflect the current wind conditions.



2、 Technical parameters:

Measurement range Wind speed: 0-60m/s Wind direction: 0-360 °

Measurement accuracy Wind speed: ± 0.4+(0.05x actual wind speed) m/s Wind direction: ± 1 °

Resolution Wind speed: 0.2m/s Wind direction: 1 °

Start wind speed ≤ 0.5m/s

Input voltage DC12V

Output signal RS485 or 4-20mA

3、 Product features:

Good dynamic characteristics, good linearity, high precision, high sensitivity, and strong wind resistance

• Wide measurement range

• Good interchangeability

The circuit has a long lifespan, and the PCB used in the circuit is made of high-grade materials, ensuring the stability of parameters and the quality of electrical performance.

The integrated wind speed and direction sensor housing is made of aluminum alloy material and uses special mold precision die-casting technology. The dimensional tolerance is very small and the surface accuracy is very high. The internal circuits have been protected, and the entire sensor has high strength, weather resistance, corrosion resistance, and waterproofing.

All electronic components are made of imported industrial grade chips, making the overall system highly reliable in resisting electromagnetic interference

4、 Working principle:

The wind cup type wind speed sensor is a very common wind speed sensor invented by Robinson from the UK. The sensing part is composed of three or four conical or hemispherical empty cups. The hollow cup shell is fixed on a trident star shaped bracket that forms a 120 ° angle or a cross shaped bracket that forms a 90 ° angle. The concave surfaces of the cups are arranged in one direction, and the entire crossbar is fixed on a vertical rotation axis.

When the wind blows, it causes the wind cup to start rotating. The higher the wind speed, the greater the initial pressure difference, the greater the acceleration generated, and the faster the wind cup rotates. After the wind cup starts to rotate, due to its rotation in the direction of the wind, the pressure received by the wind relatively decreases. However, when the wind cup rotates at the same speed facing the wind, the wind pressure received relatively increases, and the wind pressure difference continues to decrease. After a period of time (when the wind speed remains constant), when the differential pressure acting on the three wind cups reaches zero, the wind cup becomes uniformly rotating. In this way, the wind speed can be determined based on the rotational speed of the wind cup (revolutions per second).

When the wind cup rotates, it drives the coaxial multi tooth cutting disc or magnetic rod to rotate, and a pulse signal proportional to the speed of the wind cup is obtained through the circuit. The pulse signal is counted by a counter and converted to obtain the actual wind speed value. At present, the new type of rotor anemometer adopts a three cup design, and the performance of the conical cup is better than that of the hemispherical cup. When the wind speed increases, the rotor can quickly increase its speed to adapt to the airflow speed. When the wind speed decreases, due to the influence of inertia, the speed cannot immediately decrease. The wind speed indicated by the rotary anemometer in gusty winds is generally too high, resulting in an excessive effect (with an average error of about 10%)

5、 Application location:

It can be widely used in high-rise equipment or places such as ports, mines, airports, railways, ships, power plants, and building tower cranes. The integrated wind speed and direction sensor can effectively prevent and reduce the losses caused by natural disasters caused by strong winds.