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An active-passive radiation-type real-time spectral specific emissivity measuring instrument and its application method

A specific emissivity, active and passive technology, used in radiation pyrometry, optical radiation measurement, electrical radiation detectors, etc., can solve the problem of not overcoming measurement errors, unable to obtain the specific emissivity in real time, and unable to determine the specific emissivity distribution curve. And other issues

Active Publication Date: 2017-07-21
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the emissivity measuring instruments and methods commonly used at present can only measure the average emissivity in the thermal infrared band with an infrared radiometer, and cannot measure the distribution curve of emissivity with the spectrum
And most of them cannot obtain the specific emissivity in real time, and most of them have not overcome the measurement error caused by the heating and cooling of the measured object caused by changing the environmental irradiance

Method used

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  • An active-passive radiation-type real-time spectral specific emissivity measuring instrument and its application method
  • An active-passive radiation-type real-time spectral specific emissivity measuring instrument and its application method
  • An active-passive radiation-type real-time spectral specific emissivity measuring instrument and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Example 1 The measuring instrument connected to the infrared radiometer device

[0085] Such as figure 1 Shown, a kind of active-passive radiation type real-time spectral ratio emissivity measuring instrument is characterized in that:

[0086] The active-passive diffuse real-time spectral emissivity measuring instrument includes a main cavity 1, a sensor, a supporting plate 8, a data transmission-calculation-display 9;

[0087] Wherein the main body chamber 1 is a square tubular structure formed by sandblasting and gold-plated iron plates on the surface. The top of the main body chamber 1 is provided with an upper flap 2, and the bottom is provided with a lower flap 3. The upper flap 2 and the lower flap are The surface of the turnover plate 3 is sandblasted and gold-plated and connected to the wall of the main cavity 1 through the connecting part 4;

[0088] The top of the upper flap 2 is provided with a block-shaped electric heating component 5 as a dual-purpose dif...

Embodiment 2

[0133] Embodiment 2 is connected to the measuring instrument of 102F Fourier transform spectrometer device

[0134] Such as figure 2 As shown, compared with Example 1, the difference between the active-passive diffuse real-time spectroradiometric emissivity measuring instrument described in Example 2 and Example 1 is that the sensor is a 102F Fourier spectrometer 7-1; The objective lens of the 102F Fourier spectrometer 7-1 is connected and fixed with the 45° observation cylinder 1-1 through the 102F Fourier spectrometer joint 1-2; Fasten the bottom of the Fourier spectrometer 7-1.

[0135] This embodiment adopts the method for measuring the distribution curve of specific emissivity with spectrum by the active-passive diffuse real-time spectral specific emissivity measuring instrument, and the sensor for measuring the distribution curve of specific emissivity with spectrum is 102F Fourier spectrometer 7-1 , this embodiment measures the 8-14 micron band ε m (λ, t) distributi...

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Abstract

The invention discloses an active / passive diffusion type real-time spectrum emissivity tester and a use method thereof. The tester comprises a dual-face gold-plated main body chamber, a block-like electro-thermal assembly, a 102F Fourier expansion spectrometer, an infrared radiation meter and a real-time data transmission calculation displaying device, wherein the block-like electro-thermal assembly is arranged on the dual-face gold-plated main body chamber, the block-like electro-thermal assembly and the dual-face gold-plated main body chamber are arranged on a supporting board observation hole to form a diffusion type radiation source for an observation object under the main body chamber, one side of the main body chamber has a 45-DEG observation cylinder which is connected with the infrared radiation meter or the 102F Fourier expansion spectrometer, observation data is transmitted to the real-time data transmission calculation displaying device, an 8-14-micrometer average emissivity of a tested object or an emissivity curve changing along with spectrums are acquired through calculation, and real-time correction can be carried out by employing a time-delay temperature increasing / decreasing equation. The active / passive diffusion type real-time spectrum emissivity tester can rapidly test the average emissivity of thermal infrared wave bands and the distribution curve of the emissivity changing along with the spectrums in real time, and measurement precision is improved.

Description

technical field [0001] The invention relates to a measuring instrument and its measuring method in the field of quantitative thermal infrared remote sensing. Specifically, the present invention relates to a fast real-time spectral emissivity measuring instrument, which can measure the distribution of specific emissivity with the spectrum and can also measure thermal infrared The average specific emissivity of the band can be used for the determination of the laboratory of the basic research department, and can also be used for the determination of military camouflage in the field. It can measure the specific emissivity of all ground objects, including some specific emissivity measuring devices and The method is not suitable for the determination of ground features with a specific emissivity lower than 0.9 (measurement required for mineral prospecting identification and military camouflage). Background technique [0002] The surface temperature of an object is the energy valu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/10G01J5/02G01J3/28
Inventor 张仁华米素娟田静苏红波唐新斋荣媛陈少辉
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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