The utility model discloses a
wind direction sensor for a polar region
automatic weather station, which comprises an upper shell, a lower shell, a
tail fin and a cap body, the lower shell is fixedly arranged on a base, the upper end of the lower shell is fixedly connected with the cap body, the upper end of the cap body is slidably connected with the upper shell, a pressing strip
system is arranged on the upper shell, and the
tail fin is slidably connected with the upper shell. The
batten system is used for fixing the
tail fin; according to the
wind direction sensor, the two
layers of umbrella-shaped structure reinforcing ribs are adopted, the wind resistance strength and the
impact resistance strength of the upper shell device can be improved, the sensor is prevented from being damaged by strong wind and sand carried by the strong wind, the upper shell is connected with the tail fin through the T-shaped groove structure, damage is convenient, the tail fin can be rapidly replaced, the tail fin is designed to be in an arc shape, and the tail fin is convenient to replace. The
wind direction sensor is more stable in use by utilizing the Bernoulli principle; in addition, anti-freezing
coating treatment is added to the sensor, so that the freezing possibility is reduced, and the
potentiometer adopts a
metal ceramic potentiometer, so that the service life of the
potentiometer under strong wind is prolonged.