▎ 摘　　要

NOVELTY - The sensor has two resistance modules whose input ends are connected with a power supply. Output ends of the resistance modules are connected to an input end of a wind speed and wind direction calculation module. The resistance module is provided with two resistance units. Two resistance units in the same resistance module are connected in series. Four resistance units are symmetrically distributed around a graphene film by taking the graphene film as a center. USE - Thermal wind speed and wind direction sensor for use in environment monitoring, air conditioning and industrial and agricultural production. ADVANTAGE - The sensor has higher sensitivity and is easy to package on the basis of not changing the substrate material and increasing the heat insulation groove. The heating element is set as graphene film, using graphene film excellent heat conductivity coefficient and uniformity, on the one hand, reducing the heating element under the same voltage to improve the time needed by a certain temperature. The sensitivity and response time of the sensor is improved, using high heat diffusion performance of the heating unit, improving the uniformity of heating unit. The device improves the sensitivity, at the same time, it does not cause the structure becomes fragile to cause packaging difficult. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of graphene film. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a thermal wind speed and wind direction sensor for use in environment monitoring, air conditioning and industrial and agricultural production. Upper inner resistor (RT1) Lower inner resistor (RT2) Left inner resistor (RT3) Right inner measuring resistor (RT4) Upper outer resistor (RTo1)