本文選題：紅外輻射 + 光譜輻射計(jì)　； 參考：《沈陽(yáng)航空航天大學(xué)》2017年碩士論文

【摘要】：紅外輻射是一種電磁場(chǎng)輻射,凡是溫度高于絕對(duì)零度的物體都在不斷的輻射紅外線,紅外輻射充滿整個(gè)空間。因此,對(duì)目標(biāo)紅外輻射特性的研究是現(xiàn)階段研究的重點(diǎn)課題之一。本文在利用傅里葉光譜輻射計(jì)測(cè)量系統(tǒng)的基礎(chǔ)上,對(duì)被測(cè)目標(biāo)的輻射特性進(jìn)行了研究。主要研究?jī)?nèi)容包括:大氣透過(guò)率的計(jì)算。在物體發(fā)出輻射的過(guò)程當(dāng)中,空氣中懸浮顆粒的散射以及氣體分子的吸收是能量在傳輸過(guò)程中發(fā)生衰減的主要原因。為了提高對(duì)目標(biāo)紅外輻射特性的測(cè)量精度,利用紅外光譜輻射計(jì)MR170在不同溫度下對(duì)面源黑體的輻射特性進(jìn)行了測(cè)量。根據(jù)對(duì)大氣透過(guò)率建立的計(jì)算模型,求得實(shí)驗(yàn)環(huán)境下的大氣透過(guò)率值。然后根據(jù)計(jì)算得到的大氣透過(guò)率值對(duì)測(cè)得的輻亮度值反演,提高輻射特性測(cè)量精確度。目標(biāo)光譜發(fā)射率的計(jì)算。發(fā)射率是物體紅外輻射測(cè)量的一項(xiàng)重要參量,對(duì)目標(biāo)輻射特性的測(cè)量精確性有著直接的影響。本文在傳統(tǒng)的能量法測(cè)發(fā)射率的基礎(chǔ)上進(jìn)行改進(jìn),利用紅外光譜輻射計(jì)MR170測(cè)量目標(biāo)的光譜輻射亮度并在同一溫度相同波段下建立一標(biāo)準(zhǔn)黑體模型,對(duì)目標(biāo)的發(fā)射率進(jìn)行求解。并進(jìn)行了誤差修正和分析,提高了發(fā)射率的計(jì)算精度。對(duì)飛機(jī)蒙皮輻射特性進(jìn)行測(cè)量和計(jì)算。在相同環(huán)境相同距離下利用面源黑體對(duì)輻射計(jì)進(jìn)行標(biāo)定,利用標(biāo)定的輻射計(jì)對(duì)不同溫度下的飛機(jī)蒙皮的輻射特性進(jìn)行測(cè)量和計(jì)算。結(jié)合大氣透過(guò)率的計(jì)算結(jié)果以及飛機(jī)表面蒙皮發(fā)射率的計(jì)算對(duì)目標(biāo)的輻射特性進(jìn)行了修正,提高輻射特性的計(jì)算精度。
[Abstract]:Infrared radiation is a kind of electromagnetic radiation. All objects with temperature above absolute zero are constantly radiating infrared radiation, and infrared radiation fills the whole space. Therefore, the study of infrared radiation characteristics of target is one of the key research topics at present. Based on the Fourier spectrum radiometer measurement system, the radiation characteristics of the target are studied in this paper. The main research contents include the calculation of atmospheric transmittance. The scattering of suspended particles in the air and the absorption of gas molecules are the main reasons for the decay of energy in the process of radiation. In order to improve the measurement accuracy of infrared radiation characteristics of targets, the infrared spectral radiometer (MR170) was used to measure the radiation characteristics of non-point blackbodies at different temperatures. Based on the calculation model of atmospheric transmittance, the atmospheric transmittance in experimental environment is obtained. Then the measured radiance values are inversed according to the calculated atmospheric transmittance values to improve the measurement accuracy of radiation characteristics. Calculation of target spectral emissivity. Emissivity is an important parameter in infrared radiation measurement of objects, which has a direct impact on the measurement accuracy of target radiation characteristics. Based on the traditional energy method for emissivity measurement, the infrared spectral radiometer (MR170) is used to measure the spectral radiance of the target, and a standard blackbody model is established at the same temperature band to solve the emissivity of the target. Error correction and analysis are carried out to improve the accuracy of emissivity calculation. The radiation characteristics of aircraft skin were measured and calculated. The radiometer is calibrated by using a blackbody in the same environment and at the same distance, and the radiation characteristics of the aircraft skin at different temperatures are measured and calculated by the calibrated radiometer. Combined with the calculation of atmospheric transmittance and the calculation of the surface emissivity of the aircraft, the radiation characteristics of the target are modified to improve the accuracy of the calculation of the radiation characteristics.
【學(xué)位授予單位】：沈陽(yáng)航空航天大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN21

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 關(guān)威;劉建梅;王琦;傅莉;;基于紅外輻射計(jì)的物體光譜發(fā)射率測(cè)量方法[J];火力與指揮控制;2016年11期

2 魏巍;俞建衛(wèi);余曉芬;;基于紅外測(cè)溫的脂潤(rùn)滑摩擦副界面波段發(fā)射率變化分析[J];農(nóng)業(yè)工程學(xué)報(bào);2015年23期

3 李晉華;王志斌;陳媛媛;宗鵬飛;張鵬飛;;近紅外氧氣A帶大氣透過(guò)率的計(jì)算[J];激光與紅外;2013年10期

4 李園園;屈惠明;劉文俊;;基于環(huán)境輻射的現(xiàn)場(chǎng)目標(biāo)發(fā)射率測(cè)量方法研究[J];激光與紅外;2013年03期

5 譚洪;宣益民;韓玉閣;李強(qiáng);;基于FTIR的光譜輻射率測(cè)量試驗(yàn)研究[J];工程熱物理學(xué)報(bào);2012年10期

6 楊燕萍;齊明;閆鑫;田旭園;湯一平;;紅外熱成像及圖像處理技術(shù)在建筑物缺陷檢測(cè)方面的應(yīng)用[J];新型建筑材料;2011年12期

7 王超哲;童中翔;蘆艷龍;柴棟;;飛機(jī)紅外輻射特性及其探測(cè)技術(shù)研究[J];激光與紅外;2011年09期

8 楊詞銀;張建萍;曹立華;;基于實(shí)時(shí)標(biāo)校的目標(biāo)紅外輻射測(cè)量新方法[J];紅外與毫米波學(xué)報(bào);2011年03期

9 戴景民;宋揚(yáng);王宗偉;;光譜發(fā)射率測(cè)量技術(shù)[J];紅外與激光工程;2009年04期

10 呂建偉;王強(qiáng);;飛行器表面溫度和發(fā)射率分布對(duì)紅外輻射特征的影響[J];光電工程;2009年02期

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