WIND VANE, WIND VANE-AIRFLOW METER, AND MOVING DIRECTION MEASURING INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To provide a wind vane capable of detecting the wind direction of light wind.;SOLUTION: A wind vane 1 comprises a plurality of sensors 2 as follows, and a control unit 3. Each of the sensors 2 includes: one surface 2a; and first and second interlayer connection members 21a and 21b formed of different metals or semiconductors. Each sensor 2 further includes a thermoelectric transducer 21 generating an electric output when a temperature difference is generated between one end 21aa or 21ba and the other end 21ab or 21bb of each of the first and second interlayer connection members 21a and 21b. Each sensor 2 generates an electric output when surrounding air whose temperature is changed by a heater 22 is moved by wind and the temperature difference is generated between one end 21aa or 21ba and the other end 21ab or 21bb of each of the first and second interlayer connection members 21a and 21b. The control unit 3 calculates a wind direction of the wind on the basis of this output difference. The wind vane 1 can, therefore, detect the wind direction of light wind.;COPYRIGHT: (C)2016,JPO&INPIT