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Calibration method for infrared spectrum radiation energy measuring device

A technology of spectral radiant energy and radiant energy, which is applied in the field of infrared spectral emissivity measurement of infrared stealth coating materials, can solve the problem of low measurement level of infrared spectral energy signal, and achieves the improvement of measurement accuracy, accuracy and good application effect. Effect

Active Publication Date: 2016-01-27
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that the infrared spectral energy signal measurement level is not high in the infrared spectral emissivity measurement of materials such as infrared stealth coatings, the present invention provides a calibration method for an infrared spectral radiant energy measurement device

Method used

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  • Calibration method for infrared spectrum radiation energy measuring device
  • Calibration method for infrared spectrum radiation energy measuring device
  • Calibration method for infrared spectrum radiation energy measuring device

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Embodiment 1

[0035] Such as figure 1 As shown, a kind of infrared spectrum radiant energy measurement device of the present invention, it comprises grating monochromator 6, infrared detector 5, lock-in amplifier 3 and chopper 7; Wherein, chopper 7 is placed in grating monochromator 10-20 mm before the incident slit of the colorimeter 6, the infrared detector 5 is next to the exit slit of the grating monochromator 6; The AC signal is amplified.

Embodiment 2

[0037] A kind of calibration method of infrared spectrum radiation energy measuring device according to the present invention, it comprises the following steps:

[0038] (a) Place the black body radiation source 1 and the black body radiation source 2 on the electric translation platform 8, and stabilize the black body radiation source 1 at the set temperature T 1 , to stabilize the black body radiation source 2 at the set temperature T 2 , move to make the radiation energy of blackbody radiation source 1 and the radiation energy of blackbody radiation source 2 respectively inject into the front 200~300mm of the incident slit of grating monochromator 6 (for example: 200mm, 250mm or 300mm); temperature T 1 , T 2 100°C above room temperature;

[0039] (b) The chopper 7 is placed 10-20 mm before the incident slit of the grating monochromator 6, and the infrared detector 5 is next to the exit slit of the grating monochromator 6;

[0040] The chopper 7 repeatedly blocks the radi...

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Abstract

The invention provides a device for measuring infrared spectrum radiation energy and a calibration method of the device. The device comprises an optical grating monochrometer, an infrared detector, a lock-in amplifier and a wave chopper. The calibration method includes the steps that a black body radiation source is used as a standard radiation energy source, temperature is accurately controlled to a certain temperature respectively, output signals of the device for measuring infrared spectrum radiation energy are measured respectively, and the device for measuring infrared spectrum radiation energy is calibrated by the utilization of a known black body standard radiation energy value. Through the research of the method, the device for measuring infrared spectrum radiation energy and the calibration method of the device are applied to measuring infrared characteristic parameters of infrared spectrum emissivity and the like of infrared stealth coatings and other materials, therefore, measuring accuracy of the device for measuring infrared spectrum radiation energy is improved, the problem that the measuring accuracy is low in a wide spectrum range is solved, and the application effect is good.

Description

technical field [0001] The invention relates to the measurement of infrared spectral emissivity of infrared stealth coating materials, in particular to a calibration method of an infrared spectral radiation energy measuring device used for measuring infrared spectral emissivity of materials. Background technique [0002] Radiation characteristics such as infrared emissivity and infrared emission spectrum are very important index data when evaluating the performance of stealth materials and decoy coating materials. When measuring the infrared spectral emissivity of materials such as infrared stealth coatings, the most important thing is to use the infrared spectral radiant energy measuring device to accurately measure the infrared band radiant energy of the measured object at a specified temperature. Calibrating the infrared spectral radiant energy measurement system so that it has good measurement linearity and can accurately reflect the spectral energy distribution of each ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/10G01J5/52
Inventor 张俊祺孙富韬王文革张晓菲赵化业
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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