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

• Main Authors: SAKAIDA ATSUSUKE, TANIGUCHI TOSHIHISA, HARADA TOSHIICHI
• Format: Patent
• Language: English; Japanese
• Published: 21.01.2016
• Subjects: INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; PHYSICS; TESTING

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. 【課題】微弱な風の風向の検出が可能な風向計を提供する。【解決手段】風向計１は、以下の複数のセンサ２と制御部３を有する。センサ２は、一面２ａを有し、互いに異なる金属もしくは半導体で構成された第１、２層間接続部材２１ａ２１ｂを有する。また、第１、２層間接続部材２１ａ、２１ｂのそれぞれの一端２１ａａ、２１ｂａと他端２１ａｂ、２１ｂｂとで温度差が生じたときに電気的な出力を発生させる熱電変換素子２１を備える。そして、センサ２は、ヒータ２２によって温度を変化させられた周囲の空気が風により移動させられて、第１、２層間接続部材２１ａ、２１ｂの一端２１ａａ、２１ｂａと他端２１ａｂ、２１ｂｂとで温度差が生じたときに電気的な出力を発生させる。制御部３は、この出力の差に基づいて風の風向を算出する。このため、この風向計１では、微弱な風の風向の検出が可能となる。【選択図】図１