The method of making a weather vane is as follows:
1. First prepare a few pieces of cardboard, then start rolling it up from one corner into a paper stick. Then glue it with double-sided tape, cut off the upper part and roll the second piece of cardboard in the same way.
2. When finished, take the third piece of cardboard, fold it in half, use a pen to draw the shape to be cut out and cut it. Once cut out, glue it to the white paper stick. Third, combine the two paper sticks so that the weather vane is ready.
A weather vane is an instrument used to determine the direction of the wind. A weather vane is an asymmetrically shaped object whose center of gravity is fixed on a vertical axis. When the wind blows, the end that creates greater resistance to airflow will rotate with the wind, indicating the direction of the wind.
The metal weather vane consists ofof six parts: weather vane, wind wheel, tail fin, movable mast, main mast and base. The main part is made of high quality stainless steel; the fan blades are made of high-quality engineering plastics with strong corrosion resistance; the movable rod part is made of high-quality stainless steel double sealed bearings, which have high sensitivity, low wind start speed and durability.
The weather vanes are easy to install and transport and are widely used in meteorological and chemical industries, mining areas, agricultural production, oil field exploration, wind power generation and other industries. other industries.
The wind vane transducer (wind speed sensor) is a coded disk and photoelectric component. When the weather vane rotates with the change of wind direction, the shaft drives the code disk to rotatein the space of the photoelectric component, and the generated photoelectric signal corresponds to the Gray code output of the wind direction at that time. The sensor transducer can use a precision conductive plastic potentiometer to produce a changing voltage signal output at the active end of the potentiometer.