Infrared radiation shielding device, infrared detector calibration method and self-inspection method

The invention relates to an infrared radiation shielding device, an infrared detector calibration method and a self-checking method, belongs to the technical field of infrared testing, and solves the problem of low calibration precision of an infrared detector in the prior art. Comprising a support, a shielding piece and a shielding piece angle adjusting assembly. The shielding piece angle adjusting assembly is used for linearly adjusting the rotation angle of the shielding piece. According to the infrared radiation shielding device, shielding surfaces and penetrating surfaces with different sizes can be linearly formed by linearly adjusting the rotation angle of the shielding piece, so that infrared radiation energy received by a photosensitive surface reaching a detection sensitive element of an infrared detector is linearly adjustable; therefore, the calibration coefficient under the linearly changing infrared radiation energy can be obtained, and the calibration result is more stable and accurate. 本发明涉及一种