Integrated surface source black body and manufacturing method thereof

The invention provides an integrated surface source black body and a manufacturing method thereof in the technical field of infrared optics, the surface source black body comprises a radiant panel, a temperature measurement sensor and a heating sheet, a low-temperature fluid flow channel is arranged in the radiant panel, and the temperature measurement sensor is installed on the side face of the radiant panel. A micro-cone structure is arranged on the front surface of the radiant panel, a high-emissivity coating is sprayed on the surface of the micro-cone structure, and a heating sheet is adhered to the rear surface of the radiant panel. By designing the micro-cone structure on the front surface of the radiant panel and spraying the high-emissivity coating on the micro-cone structure, the surface source emissivity is improved, and the radiant panel and the refrigerator are integrally designed, so that the contact thermal resistance between the radiant panel and the refrigerator on the surface source black bod