Simulation experiment method for measuring infrared features of solid target in normal temperature environment

A technology for simulating experiments and targets, which is applied in the field of infrared radiation characteristic experiments and tests, can solve problems that have not yet appeared in research, and achieve the effect of reducing the difficulty of experiments and reducing the cost of experiments

Inactive Publication Date: 2016-11-02
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

At present, no relevant research has

Method used

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Embodiment Construction

[0018] Taking a certain aircraft wing component as an example, the content of the simulation experiment method of the present invention for measuring the infrared characteristics of a solid target lower than the ambient temperature in a normal temperature environment will be described below.

[0019] 1. Experimental measurement content

[0020] The experiment needs to measure the integrated infrared radiation intensity of the wing components of an aircraft in the 10μm-14μm band when it is flying at high altitude. The temperature distribution of the wing part is 240K-280K when flying in high altitude, which is lower than the ambient temperature on the ground, and it is very difficult to simulate and measure it under the normal temperature environment on the ground.

[0021] 2. Model design

[0022] The experimental model is designed according to the structure of the actual wing parts, and the shape and size of the experimental model are exactly the same as the actual wing part...

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Abstract

The invention discloses a simulation experiment method for measuring infrared features of a solid target with temperature lower or much higher than ambient temperature in normal temperature environment, and provides the relationship between low temperature long wave radiation and high temperature short wave radiation of solid wall in certain conditions, so that the integral radiation intensity of long wave band of solid wall surface under low temperature and the integral radiation intensity of middle wave band of solid wall surface under high temperature can be calculated mutually. The method can be used for measuring radiation characteristics of high temperature or low temperature solid, and can adjust the temperature of the solid target to slightly higher than the normal temperature on the ground, so as to effectively reduce experiment difficulty, reduce experiment cost, and also improve the measurement accuracy.

Description

technical field [0001] The invention relates to a simulation experiment method for measuring the infrared characteristics of a solid object whose temperature is lower than or much higher than the ambient temperature in a normal temperature environment, and belongs to the technical field of infrared radiation characteristic experiment testing. Background technique [0002] With the continuous advancement of science and technology, more and more fields involve infrared radiation-related technologies, and further research on infrared radiation plays an important role in promoting the development of these fields. When studying infrared radiation, the measurement technology of target infrared radiation characteristics is a very important research method. The temperature of the target is different, and the energy radiated by it in different wave bands is different. For low-temperature targets, the radiation energy in the long-wave band (8 μm-14 μm) is relatively strong, and the r...

Claims

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Application Information

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IPC IPC(8): G01N25/00G01J5/00
CPCG01J5/0003G01N25/00
Inventor 吉洪湖刘健王浩叶志峰刘桐
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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