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Vacuum black body radiation source

A black body radiation source and vacuum technology, applied in the black body field, can solve the problems of low calibration accuracy and inability to measure the value, and achieve the effects of high emissivity, large aperture and good stability

Active Publication Date: 2016-06-15
NAT INST OF METROLOGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on the current on-board blackbody calibration accuracy is not high, the value cannot be measured and other bottlenecks restricting the development of infrared remote sensing in my country, there is an urgent need to study a new generation of temperature standard blackbody for on-board calibration brightness

Method used

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Embodiment Construction

[0015] In order to facilitate the understanding of the present invention, the embodiments of the present invention will be described below in conjunction with the accompanying drawings. Those skilled in the art should understand that the following description is only for the convenience of explaining the present invention, not as a specific limitation on its scope.

[0016] figure 1 Shown is a schematic structural view of the vacuum black body radiation source of the present invention. The vacuum blackbody radiation source includes a cylindrical outer cylinder 1, which can be made of metal or other suitable materials. The outer periphery of the outer cylinder 1 has a stainless steel shell 2, and there is a stainless steel shell 2 below the stainless steel shell 2. At least two brackets 3 for supporting the stainless steel shell 2 have a cavity 5 in the outer cylinder 1, the cavity 5 includes a first part and a second part, the first part is a cylindrical cavity, The second pa...

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Abstract

The invention discloses a vacuum black body radiation source used for spaceborne scaling. The radiation source comprises an outer black body cylinder of a cylindrical form, a black body cavity and at least one heating assembly, wherein the black body cavity comprises a first part and a second part, the heating assembly is used to heat the black body cavity, the black body cavity is positioned in the outer cylinder, and a positioning support is arranged between the black body cavity and the outer cylinder. The vacuum black body radiation source has the advantages of large caliber, high stability, high emission rate and wide temperature range, and requirements for a spaceflight and aviation black body are met.

Description

technical field [0001] The invention relates to a blackbody, in particular to a vacuum blackbody radiation source for spaceborne calibration. Background technique [0002] With the rapid development of infrared remote sensing technology, infrared remote sensing has been widely used in military fields and civilian fields such as earth exploration, weather forecasting, and environmental monitoring. However, all infrared detection instruments need to be calibrated by a black body before they can be used. As a standard radiation source, the black body plays an increasingly prominent role. For example, it is used for the calibration of radiation temperature measurement equipment such as radiation thermometers and thermal imaging systems, to study the thermal radiation characteristics of various substances, and to assist in the measurement of surface emissivity of materials. In addition, in the field of aerospace, infrared targets are usually simulated by black bodies. Aerospace...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/00G05D23/24
CPCG05D23/24G01J5/00G01J5/80
Inventor 郝小鹏孙建平
Owner NAT INST OF METROLOGY CHINA