烟幕

For the sake of excogiating infrared interferents smoke technology which is the same with outer space war field, using for reference of the mature technology and experiences of infrared interferents under aerosphere, the formulation and near infrared extinction performance of the pyrotechnic infrared and pulverous smoke interfrets are experimental studied under entirvionment to vacuum and micro-gravitation.

为研究出适用于外层空间战场的抗红外烟幕技术，以大气层下抗红外烟幕的成熟技术和经验为基础，对真空和微重力环境下燃烧型和粉未型抗红外烟幕干扰剂的配方和近红外消光性能进行了实验研究。

The traditional smoke theory considers that the smoke particles will sedimentate due to gravity after forming of smoke screen, and then the particles reach a final sedimentation velocity thanks to the effect of air-resistance and buoyancy, and the equation can be solved by the Stokes pellet resistance theory and often used to analyze the performance of smoke.

传统烟幕理论认为，在烟幕形成后，烟幕微粒受到重力的作用开始沉降，同时受到空气阻力和浮力的作用，最后使烟幕微粒达到终端沉降速度，这个速度方程可以通过Stokes圆球阻力理论求得，并被用来分析烟幕的性能。

A measurement method for insertion loss is introduced, and the results show that the integrated system works well in the measurement of smoke screen at 3mm band.

探讨了该系统的烟幕插入损耗特性测量方法，实验结果表明：该系统能满足3mm波段烟幕特性自动化测量的要求。

Its intention is to study the obscuring effect and effectual obscurant area following the formation of the smoke and to develop the examining system of Total Obscuring Power. Therefore it is possible to distinguish objects from the smoke obscuring condition and provide simulation technology, theory model and experimental platform for electronic interference.

本课题来源于齐齐哈尔建华机械研究所和国家自然科学基金重点项目(编号：50336010)的一部分，目的是研究烟幕形成以后的遮蔽能力和有效遮蔽面积，并研制全遮蔽能力检测系统，以便针对烟幕遮蔽的目标实现有效识别，为电子干扰提供仿真技术、理论模型以及实验平台。

The paper are studied dynamics characteristic of IR smoke under entironment to vacuum and micro-gravitation,based maths-model of thermodynamic onflow pervasion by smoke formed, the experiment proves that the movement speed of smoke gradually minishes along with hoist of vacuum.The process after smoke formed analysed ,which proves that its movement rule relates hilum of particle.

本文对真空和微重力环境下的红外烟幕进行了动力学特性研究，建立了烟幕形成过程中的热力湍流扩散数学模型，通过实验表明随著真空度的升高，烟幕的运动速度逐渐减小；并对烟幕形成后的过程进行了分析，结果表明其运动规律跟粒子的粒径有关。

The software includes two modules. One is to evaluate and manage how smoke bomb can shield the thermal images, which can be used as the guide in the development and improvement of thermal smoke bomb. The other is to process the data of thermal images under smoke-screen to locate target in the shortest time and improve the quality of the target thermal images, which can be used as the reference to further design for development and improvement of thermal image.

该软件主要包括两大功能模组：1红外烟幕对热像图遮蔽效果的评价和管理模块，利用该模块研究红外烟幕环境对红外与热像传输影响的定量测试与评价，指导红外烟幕弹的研制与改进；2红外烟幕遮蔽条件下热像图增强处理模块，该模块主要是研究采用一定的处理方法，改善烟幕遮蔽条件目标热像图的观察效果，争取最短时间发现或识别目标，为今后热像仪的研制设计、改进提供参考依据。

According to the characteristics of main smoke screen equipments, developing trends of smoke screen technology in future are given.

结合目前主要烟幕装备的特点，给出了未来烟幕技术的发展趋势。

The working elements of smoke screen on countermining IR and laser guided weapons were analyzed.

简要介绍了烟幕的分类和作用，分析了烟幕对抗红外与激光制导武器的工作原理。

The testing mechanism of IR spectrum transmittance is studied and the testing method of IR spectrum transmittance is established.

研究了烟幕红外光谱透过率的测试机理，建立了烟幕红外光谱透过率的测试计算方法。

For choosing a material to interfere with IR and laser,the IR and 10.6μm laser transmissivity of micron-copper powders of different components were tested in the smoke chamber,when the concentration of the smoke reached 1.0 g·m-3,the transmissivity of 1~3μm,3~5μm and 8~14μm IR under 30%,and the transmissivity of 10.6μm laser under 20%,the attenuation ability of red copper powders,green and red copper powders and green copper powders to IR and 10.6μm laser increased gradually.At the same time,the interferent...

为选择一种能够遮蔽红外与激光的烟幕干扰材料，在烟幕箱中测试了组分配比不同的微米铜粉的红外与10.6μm激光烟幕透过率，当烟幕浓度为1.0 g.m-3时，1~3μm，3~5μm，8~14μm红外的透过率均小于30%，10.6μm激光的透过率小于20%，红光铜粉、青红光铜粉和青光铜粉对红外与10.6μm激光的衰减能力逐渐增强；同时测试了微米铜粉对红外热像仪的干扰效果，浓度为2.0 g.m-3时，青光铜粉能够完全遮蔽红外热像仪。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。