發(fā)布時(shí)間：2019-04-27 06:47

【摘要】：紅外輻射測(cè)量系統(tǒng)的寬動(dòng)態(tài)范圍定標(biāo)通常是在多個(gè)溫度點(diǎn)下,設(shè)置多個(gè)積分時(shí)間并適當(dāng)加入衰減片的方式實(shí)現(xiàn)的。其不僅效率低、耗時(shí)長(zhǎng)、成本高且影響整個(gè)紅外輻射測(cè)量系統(tǒng)實(shí)時(shí)性和機(jī)動(dòng)性。對(duì)此,在考慮積分時(shí)間的定標(biāo)模型基礎(chǔ)上,提出寬動(dòng)態(tài)范圍快速定標(biāo)方法。只需調(diào)節(jié)一次積分時(shí)間和一次溫度即得到寬動(dòng)態(tài)范圍任意積分時(shí)間的定標(biāo)方程。利用Φ400 mm紅外輻射測(cè)量系統(tǒng)對(duì)快速定標(biāo)方法的定標(biāo)精度、測(cè)量精度進(jìn)行驗(yàn)證。實(shí)驗(yàn)結(jié)果表明:快速定標(biāo)方法與直接定標(biāo)結(jié)果之間最大誤差為2.75%,該方法外場(chǎng)測(cè)量時(shí)最大輻射測(cè)量誤差為11.69%,相比傳統(tǒng)輻射測(cè)量最大誤差不超過(guò)1.52%。說(shuō)明快速定標(biāo)方法能有效地保證系統(tǒng)輻射定標(biāo)精度,提高輻射測(cè)量系統(tǒng)的定標(biāo)效率,縮短定標(biāo)時(shí)間,實(shí)現(xiàn)對(duì)系統(tǒng)寬動(dòng)態(tài)范圍任意積分時(shí)間的定標(biāo)。整個(gè)輻射測(cè)量過(guò)程實(shí)時(shí)性好,操作簡(jiǎn)單、易實(shí)現(xiàn)且可靠性高,適應(yīng)針對(duì)外場(chǎng)條件下紅外輻射特性測(cè)量系統(tǒng)的要求,外場(chǎng)測(cè)量結(jié)果也說(shuō)明快速定標(biāo)可以直接應(yīng)用于靶場(chǎng)目標(biāo)的紅外輻射測(cè)量任務(wù)中。
[Abstract]:The wide dynamic range calibration of infrared radiometric measurement system is usually realized by setting multiple integration time and adding attenuation plate properly at multiple temperature points. It is not only low efficiency, long time-consuming, high cost, but also affects the real-time and mobility of the whole infrared radiation measurement system. In this paper, a fast calibration method with wide dynamic range is proposed on the basis of the calibration model considering the integration time. The calibration equation of arbitrary integration time in a wide dynamic range can be obtained by adjusting the integration time and temperature once. The calibration accuracy and measurement accuracy of the fast calibration method are verified by 桅 400 mm infrared radiometric measurement system. The experimental results show that the maximum error between the rapid calibration method and the direct calibration result is 2.75%, and the maximum radiation measurement error is 11.69% in the external field measurement, which is less than 1.52% compared with the traditional radiometric measurement. It is shown that the fast calibration method can effectively ensure the accuracy of the system radiation calibration, improve the calibration efficiency of the radiation measurement system, shorten the calibration time, and realize the calibration of arbitrary integral time in the wide dynamic range of the system. The whole radiation measurement process has the advantages of good real-time performance, simple operation, easy realization and high reliability, which can meet the requirements of infrared radiation characteristic measurement system under the condition of external field. The field measurement results also show that the fast calibration can be applied directly to the infrared radiation measurement of the target in the target range.
【作者單位】： 中國(guó)科學(xué)院長(zhǎng)春光學(xué)精密機(jī)械與物理研究所;中國(guó)科學(xué)院大學(xué);
【基金】：國(guó)家自然科學(xué)基金(51275504)
【分類號(hào)】：TN216

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

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本文編號(hào)：2466771