中文摘要：

实验研究了微泡雾的遮蔽性能，分别利用OPAG33傅立叶变换红外光谱仪研究了红外波段的遮蔽性能、利用红外成像仪分析微泡雾的实物遮蔽能力以及遮蔽率。测试结果显示，微泡雾对远红外（8um～14um）的遮蔽率能达80％以上；微泡雾对热像仪能够实现有效遮蔽。研究表明：对于微泡雾，由于其基本单元一连体微泡团直径较小且液膜薄，易于漂浮和运动，不仅含有微泡团之间在光路上的速度切变，而且还存在微泡团自身的脉动，及其速度的变化，提高了微泡雾的光学散射性能，因此，微泡雾具有高效的遮蔽性能。

英文摘要：

Using Fourier transform infrared spectroscopy and thermal imaging system, the obscuring performance of micro-bubble fog is studied. The testing result indicats that the micro-bubble fog can obscure, and the transmittance is under 20% in infrared waveband. As a result, the thermal imaging system can not find the target. Infrared obscuring performance of the group of moving air-bubble is explored by the infrared imager. The investigation indicates that when the light from radiant point penetrates the mix layer of air and moving air-bubbles, the intensity of light spot of the sensor received is attenuated intensely with generating optical path distortion. The multilayer moving air-bubbles overlapped in the light way can provide efficient obscuring performance compared to the motionless air-bubbles.