Fixed-point temperate plateau technique based standard blackbody radiation source

Abstract

The invention discloses a fixed-point temperate plateau technique based standard blackbody radiation source, which comprises a shell, wherein a temperature control flow passage inlet penetrates into the shell, and is connected with a helical heating pipeline; the helical heating pipeline is wound around a fixed-point crucible, and is communicated with a temperature control flow passage outlet; thetemperature control flow passage outlet penetrates through the shell; temperature control liquid flows in from the temperature control flow passage inlet, and flows out from the temperature control flow passage outlet after passing through the helical heating pipeline; thus, the temperature of an overall device is controlled; the interior of the fixed-point crucible is made from high-purity gallium metal; a cavity is enclosed by the high-purity gallium metal; a rear temperature compensator is also arranged inside the shell, and is connected with a uniform temperature block; the uniform temperature block is connected with the left end of the fixed-point crucible; the rear temperature compensator is used for carrying out temperature compensation on the uniform temperature block, and further, is used for carrying out the temperature compensation on the fixed-point crucible; the right side of the fixed-point crucible is in contact with a diaphragm; and the diaphragm is connected with a front temperature compensator.

Description

technical field [0001] The invention belongs to the field of blackbody radiation sources, and in particular relates to a standard blackbody radiation source based on fixed-point temperature flat technology. Background technique [0002] As a standard infrared radiation source, the standard black body radiation source is widely used in the calibration of the radiation intensity of various infrared radiation sources, for the calibration of various radiation thermometers, infrared thermometers, thermal imagers and other radiation temperature measuring instruments, and as a standard infrared radiation source Radiation sources are used in optical research to measure the surface emissivity of materials, the transmittance of optical systems, and the optical properties of substances such as transmission, reflection, and absorption. [0003] The performance that measures the performance of a blackbody radiator depends primarily on the effective emissivity of the blackbody radiator at...

AI Technical Summary

Problems solved by technology

[0004] With the development of science and technology in our country, higher requirements are put forward for the performance of black body radiation source. Conventional variable temperature black body can no longer meet the demand. Applied in the development of standard black body radiation source

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