WIND DIRECTION METER WIND DIRECTION AND FLOW METER AND MOVEMENT DIRECTION METER

摘要

The weather vane (1) has a plurality of sensors (2) and a control section (3) as follows. The sensor 2 has a first surface 2a and first and second interlayer connection members 21a and 21b made of different metals or semiconductors. A thermoelectric conversion element 21 for generating an electrical output when temperature difference occurs at one end 21aa, 21ba and the other end 21ab, 21bb of the first and second interlayer connection members 21a, 21b is provided do. The ambient air having the temperature changed by the heater 22 is moved by the wind so that the ends of the first and second interlayer connecting members 21a and 21b and the ends 21ab and 21bb ) Generates an electrical output when a temperature difference occurs. The control unit 3 calculates the wind direction based on the difference of the outputs. Therefore, in this weather vane 1, it is possible to detect weak wind direction.