High-precision surface source blackbody radiation source device applied under vacuum low temperature condition

Abstract

The invention relates to infrared radiation measurement and calibration technology field and especially relates to a high-precision surface source blackbody radiation source device capable of being applied under a vacuum low temperature condition. The device mainly comprises a blackbody radiation source main body module, a vacuum cabin, a control cable in the cabin, a through-wall air plug, a control cable outside the cabin, a refrigeration copper braid and a controller module. The blackbody radiation source main body module is placed in the vacuum cabin. The blackbody radiation source main body module is connected to an inner wall of the vacuum cabin through the refrigeration copper braid. The blackbody radiation source main body module is connected to the controller module successively through the control cable in the cabin, the through-wall air plug and the control cable outside the cabin. The device has advantages that a problem that effective emissivity, temperature uniformity and a wide temperature range can not be simultaneously satisfied in the prior art is effectively solved; and an application basis is provided for calibrating and testing infrared detection equipment and establishing a low temperature target performance test system under a vacuum environment.

Description

Technical field [0001] The invention relates to the technical field of infrared radiation measurement and calibration, in particular to a high-precision surface source blackbody radiation source device that can be applied under vacuum and low temperature conditions. Background technique [0002] At present, there are more and more applications of infrared imaging payloads such as military infrared imaging seekers, infrared thermal imaging cameras, imaging spectrometers, and infrared cameras. The corresponding demand for radiation calibration equipment is also increasing. At the same time, there is an increasing demand for calibration equipment. The requirements for performance indicators are getting higher and higher. As the standard equipment for calibration and calibration of infrared imaging equipment such as imaging spectrometers, black bodies are a key component of infrared calibration and calibration. Therefore, various performance indicators of area source black bodies use...

AI Technical Summary

Problems solved by technology

[0007] In view of the above analysis, the present invention aims to provide a high-precision surface source blackbody radiation source device applied under vacuum and low temperature conditions, which effectively solves the problem that the existing technology cannot simultaneously satisfy the effective emissivity, temperature uniformity, and wide temperature range. It provides an application basis for the calibration and testing of infrared detection equipment and the establishment of a low-temperature target performance testing system in a vacuum environment

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