Method and device for measuring surface infrared emissivity of aircraft coating

The invention discloses a device for measuring the surface infrared emissivity of an aircraft coating. The device comprises an infrared detector, a radiator, a platform, a processor and a data line, the method for measuring the surface infrared emissivity of the aircraft coating comprises the steps of setting a calibration plate, arranging an infrared emissivity measuring device, collecting an infrared radiation brightness value A under a natural environment condition, collecting an infrared radiation brightness value B under a radiation condition, solving average environment infrared radiation brightness under the natural environment condition, and calculating the surface infrared emissivity of the aircraft coating. Solving the average equivalent environment infrared radiation brightness under the active radiation condition, solving the average infrared radiation brightness at each pixel point of the coating area of the aircraft to be detected under the natural environment condition, solving the average infr