Method for simultaneously measuring smoke screen attenuation rate and radiation intensity

A technology of radiation intensity and attenuation rate, which is applied in the field of simultaneous measurement of smoke attenuation rate and radiation intensity, can solve the problems of being easily affected by environmental radiation, unable to measure smoke attenuation rate and smoke infrared radiation intensity at the same time, and achieve rapid measurement and measurement area Large, high-precision measurement effects

Active Publication Date: 2015-11-25
NAVAL AERONAUTICAL UNIV
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Problems solved by technology

Among them, the advantage of the laser measurement method is that it is less affected by environmental radiation. The disadvantage is that it can only measure the infrared radiation attenuation rate of the smoke screen on a specific spectral line. The infrared radiation attenuation rate in the infrared detection band must be extrapolated based on empirical formulas. The empirical formula should be selected according to the change of the smoke screen formula
The advantage o

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  • Method for simultaneously measuring smoke screen attenuation rate and radiation intensity
  • Method for simultaneously measuring smoke screen attenuation rate and radiation intensity
  • Method for simultaneously measuring smoke screen attenuation rate and radiation intensity

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Embodiment Construction

[0026] The steps and methods for measuring the smoke attenuation rate and radiation intensity will be described below with reference to the accompanying drawings.

[0027] Before the smoke screen is released: first, the first black body target 1 and the second black body target 6 (the temperature of which is T 2 ,T 1 ≠T 2 ) of infrared radiation intensity D 1 、D 2 . Wherein, the first black body target 1 and the second black body target 6 may also be gray body targets whose infrared radiation intensity is known. Then, the first black body target 1 and the second black body target 6 are respectively placed near the visual axis of the infrared detector 3, and the distances from the infrared detector 3 are respectively d 1 、d 2 place (such as image 3 ), the infrared detector measured the infrared radiation intensity of the first blackbody target 1 and the second blackbody target 6 to be E 1 ,E 2 , then the following equations can be obtained from formula (1):

[0028] ...

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Abstract

The invention relates to a method for simultaneously measuring smoke screen attenuation rate and radiation intensity. The method is characterized in that when a smoke screen is not released, the environment radiation intensity and the atmosphere attenuation coefficient can be measured by blackbodies and infrared detectors; and when the smoke screen is released, the smoke screen attenuation rate for shielding the blackbodies and the infrared radiation intensity are simultaneously measured based on the environment radiation intensity and the atmosphere attenuation coefficient. According to the method, the multi-point smoke screen attenuation rate and radiation intensity can be measured through the arrangement of a plurality of infrared detectors.

Description

technical field [0001] The invention relates to a method for simultaneously measuring smoke screen attenuation rate and radiation intensity. Background technique [0002] Smoke screen is an important means of photoelectric countermeasures, and its shielding effect on infrared targets is an important basis for evaluating its jamming performance. The main mechanism for the smoke screen to cover the target is to attenuate the target infrared radiation on the infrared detector through the scattering effect of the smoke screen. In addition, the infrared radiation of the smoke screen itself, the ambient infrared radiation reflected by the smoke screen, and the ambient radiation will also cause a decrease in the contrast of the infrared image. [0003] Usually, the attenuation rate of smoke screen to infrared radiation is used to evaluate the quality of smoke screen shielding performance. In the battlefield environment, if the infrared radiation of the smoke screen itself is too ...

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Application Information

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IPC IPC(8): G01M11/02G01J5/00G01J5/06
Inventor 刘亮何友金易瑶娄树理任建存李海燕
Owner NAVAL AERONAUTICAL UNIV
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