-
公开(公告)号：US6017491A
公开(公告)日：2000-01-25
申请号：US095831
申请日：1998-06-11
申请人： Ahmed Sharaby , Robert N. Miller
发明人： Ahmed Sharaby , Robert N. Miller
CPC分类号： C23F11/187 , C08K3/24 , C08K3/32 , C09D5/08 , C09D5/084
摘要： Elastomeric compositions having incorporated therein certain specific compounds and/or compositions which are non-toxic but render the metals to which the compositions are applied resistant to corrosion, particularly, when in a salt environment.
摘要翻译： 其中掺入了某些特定化合物和/或组合物的弹性组合物，这些化合物和/或组合物是无毒的，但使组合物施用的金属具有耐腐蚀性，特别是在盐环境中。
-
公开(公告)号：US5806789A
公开(公告)日：1998-09-15
申请号：US517543
申请日：1995-08-22
CPC分类号： B64D47/08
摘要： A fairing for an aircraft is provided, having a roll axis with a turret coupled to the front end of the fairing for rotation about the roll axis. An opening is formed through the front end of the turret in which a tracking member is supported for rotation between forward and rearward positions about a pitch axis transverse to the roll axis. The tracking member has a cavity with a primary optical mirror at one end and a transparent shield at an opposite end with a primary optical axis extending between the mirror and shield. The shield is slanted to minimize wind turbulence when the tracking member is located in a rearward position.
摘要翻译： 提供了一种用于飞行器的整流罩，其具有带有与所述整流罩前端相连的转台的转轴，以便围绕所述辊轴线旋转。 开口通过转台的前端形成，其中跟踪构件被支撑以围绕横向于辊轴线的俯仰轴线在前后位置之间旋转。 跟踪构件具有在一端具有主光学镜的空腔和在相对端处的透明屏蔽，并且在反射镜和屏蔽之间延伸的主光轴。 当跟踪构件位于向后位置时，护罩倾斜以最小化风湍流。
-
公开(公告)号：US5793889A
公开(公告)日：1998-08-11
申请号：US450329
申请日：1995-05-25
申请人： Boyd B. Bushman
发明人： Boyd B. Bushman
CPC分类号： G06T7/004 , F41H11/02 , G06K9/00 , G06K9/3241 , G06T5/50 , G06T2207/10016 , G06T2207/30212
摘要： A method and system of image modulation detection of an aircraft exhaust plume by time sequence differentiation is provided. The method comprises the steps of forming two sequential images of the field of view in which an exhaust plume to be detected is located, and forming a differential image from the sequential images showing components of the aircraft's exhaust plume that are modulating at a rate greater than the frame rate of the detection system. The nonmodulating components such as the sky hills, and even the missile body are eliminated from the differential image. Only the plume remains and only the plume is detected. Therefore there is not false alarm note. Each image is formed by a plurality of pixels, wherein each pixel images a portion of the field of view. A value is assigned to each pixel in each of the sequential images that corresponds to one or more characteristics of the pixel. The value of each pixel in one sequential image is subtracted from the value of the corresponding pixel in the other sequential image to produce a value for a resultant pixel. The differential image is formed by imaging the resultant pixels that have a non-zero value, wherein the differential image shows components of the aircraft's exhaust plume that are modulating at a rate greater than the frame rate of the detection system.
摘要翻译： 提供了一种通过时间序列差分对飞机排气羽流进行图像调制检测的方法和系统。 该方法包括以下步骤：形成视场的两个连续图像，其中待检测的排气羽流被定位，并且从显示飞行器的排气羽流的分量的顺序图像形成差分图像，该分量图像以大于 检测系统的帧速率。 诸如天空山，甚至导弹体的非调制组件都从差分图像中消除。 只有羽毛保留，只有羽毛被检测到。 所以没有虚假的警报。 每个图像由多个像素形成，其中每个像素对视场的一部分进行成像。 分配给与像素的一个或多个特征相对应的每个顺序图像中的每个像素的值。 从其他顺序图像中的对应像素的值中减去一个顺序图像中的每个像素的值，以产生所得像素的值。 差分图像通过对具有非零值的合成像素进行成像而形成，其中差分图像示出以大于检测系统的帧速率的速率调制的飞行器的排气羽流的分量。
-
公开(公告)号：US5552455A
公开(公告)日：1996-09-03
申请号：US521165
申请日：1995-08-31
CPC分类号： H01Q17/00
摘要： The invention is a radar absorbing material and a process for making same. In detail, the invention includes a binder material containing a mixture of two groups of spheres made of a magnetic material, The first group of spheres have an average diameter and the second group have an average diameter generally 0.73 times the average diameter of the spheres of the first group. The first and second group contain generally equal numbers of spheres. The amount of the binder material incorporated is sufficient to both bind mixture together while maintaining the individual spheres separated from each other. The process involves the steps of: providing a first group of spheres made of a magnetic material; providing a second group of spheres made of a magnetic material containing a number of spheres equal to the number of spheres of the first group with an average diameter of generally 0.73 times the average diameter of the first group of spheres; mixing the first and second groups of spheres together; and adding an amount of the binder material sufficient to both bind the mixture together while maintaining the individual spheres separated from each other.
摘要翻译： 本发明是一种雷达吸收材料及其制造方法。 详细地，本发明包括含有由磁性材料制成的两组球体的混合物的粘合剂材料。第一组球体具有平均直径，第二组具有平均直径的平均直径的0.73倍 第一组。 第一组和第二组包含大致相等数量的球体。 引入的粘合剂材料的量足以将混合物结合在一起，同时保持各个球体彼此分离。 该方法包括以下步骤：提供由磁性材料制成的第一组球体; 提供由磁性材料制成的第二组球体，所述磁性材料含有等于第一组的球体数目的多个球体，平均直径一般为第一组球体的平均直径的0.73倍; 将第一和第二组球体混合在一起; 并且添加足够量的粘合剂材料以将混合物结合在一起，同时保持各个球体彼此分离。
-
公开(公告)号：US5504486A
公开(公告)日：1996-04-02
申请号：US161554
申请日：1993-12-02
申请人： Boyd B. Bushman
发明人： Boyd B. Bushman
摘要： A detection system will detect targets against a fixed background if the target is of a type emitting a gaseous plume. The detection system directs electromagnetic energy, preferably radio frequency signals, toward the fixed background in an area of suspected target activity. The detection system has a receiver which detects reflected electromagnetic energy from the fixed background. The system will identify anomalous variations in range. The variations occur as a result of refraction of the electromagnetic energy wave passing through the gaseous exhaust stream. This indicates a probable target which is creating exhaust plume.
摘要翻译： 如果目标是发射气体羽流的类型，检测系统将检测针对固定背景的目标。 检测系统在可疑目标活动的区域中将电磁能量，优选射频信号引导到固定背景。 检测系统具有检测来自固定背景的反射电磁能的接收器。 系统将识别范围内的异常变化。 由于通过气体排气流的电磁能波的折射，出现变化。 这表示正在产生排气羽流的可能目标。
-
公开(公告)号：USD362234S
公开(公告)日：1995-09-12
申请号：US19444
申请日：1994-03-01
申请人： David M. Urie, Jr.
设计人： David M. Urie, Jr.
-
公开(公告)号：US5449129A
公开(公告)日：1995-09-12
申请号：US198722
申请日：1994-02-18
申请人： David E. Carlile , Mark H. Wexler
发明人： David E. Carlile , Mark H. Wexler
CPC分类号： B64B1/24
摘要： The invention is a propulsion system for a lighter-than-air vehicle, the vehicle having a longitudinal, lateral and vertical axis. In detail, the propulsion system includes a thrust producing assembly rotatably mounted on the vehicle, the assembly rotatable about an axis of rotation in a plane at an acute angle to the vertical axis of the vehicle, the assembly rotatable in the plane from a position wherein the thrust axis of the assembly is aligned with the longitudinal axis to a position at least plus or minus ninety degrees thereto. A powerplant assembly is coupled to the thrust producing assembly to provide power thereto. The powerplant assembly includes a fuel efficient powerplant assembly mounted within the vehicle having sufficient power for cruise conditions, the fuel efficient powerplant having a output drive shaft coupled to the thrust producing assembly. A light weight, high power powerplant assembly is mounted directly to the thrust producing assembly having sufficient power for docking conditions. A first clutch is provided for de-coupling the fuel efficient powerplant from the thrust producing assembly and a second clutch means for decoupling the light weight, high power powerplant from the thrust producing assembly. An actuation system is provided for rotating the thrust producing assembly about the axis of rotation.
摘要翻译： 本发明是一种用于轻型轻型车辆的推进系统，该车辆具有纵向，横向和垂直的轴线。 详细地，推进系统包括可旋转地安装在车辆上的推力产生组件，该组件可在与车辆的垂直轴线成锐角的平面中围绕旋转轴线旋转，该组件可在平面中从其中 组件的推力轴线与纵向轴线对准至至少正负90度的位置。 动力装置组件联接到推力产生组件以向其提供动力。 动力装置组件包括安装在车辆内的燃料效率高的动力装置组件，其具有用于巡航条件的足够功率，该燃料效率高的动力装置具有联接到推力产生组件的输出驱动轴。 重量轻的大功率动力装置组件直接安装到具有足够功率用于对接条件的推力产生组件。 提供第一离合器用于使来自推力产生组件的燃料效率动力装置脱耦合，以及用于将重量轻的动力装置与推力产生组件分离的第二离合器装置。 提供致动系统用于围绕旋转轴线旋转推力产生组件。
-
公开(公告)号：US5440291A
公开(公告)日：1995-08-08
申请号：US84721
申请日：1993-07-01
IPC分类号： G08B13/26
CPC分类号： G08B13/26
摘要： The invention is a system for detecting the presence of an intruder in a passageway. In detail, the system includes at least one capacitance probe for mounting on the wall of the passageway, the probe including a sensing member in the form of a rod extending into the passageway, the number, spacing and length of the sensing members sufficient to detect an intruder attempting to pass through the passageway.
摘要翻译： 本发明是用于检测入侵者在通道中的存在的系统。 详细地，该系统包括用于安装在通道的壁上的至少一个电容探针，探头包括呈延伸到通道中的杆形式的感测构件，足以检测的感测构件的数量，间隔和长度 试图通过通道的入侵者。
-
公开(公告)号：US5431998A
公开(公告)日：1995-07-11
申请号：US61964
申请日：1993-05-14
CPC分类号： C08J9/405 , H01B1/127 , C08J2375/04 , Y10T428/249953 , Y10T428/249961 , Y10T428/249987
摘要： A dimensionally graded electroconductive and electromagnetically responsive composite material is produced by contacting a polyurethane open cell foam substrate with a solution of an oxidatively polymerizable compound, such as pyrrole, that is polymerized to form a thin electroconductive polymer coating on the foam's surfaces. The reaction, wherein the compound is oxidized and polymerized to form a conductive polymer occurs over time. By varying the amount of time the porous foam substrate is in contact with the reacting solution a graded amount of electroconductive polymer is deposited on the foam substrate. The electrical activity of the resultant electrically conducting polyurethane/polypyrrole composite foam is measured as a Free Field Transmission loss at the microwave frequency of 10 GHz and expressed in "-dB". The polyurethane/polypyrrole composite foam with dimensionally graded electrical conductivity/activity constitutes a new bulk absorber.
摘要翻译： 通过将聚氨酯开孔泡沫基材与可聚合的化合物如吡咯的溶液接触，制得尺寸分级的导电和电磁响应的复合材料，其被聚合以在泡沫表面上形成薄的导电聚合物涂层。 其中化合物被氧化和聚合以形成导电聚合物的反应随时间发生。 通过改变多孔泡沫基材与反应溶液接触的时间量，将分级量的导电聚合物沉积在泡沫基材上。 所得导电聚氨酯/聚吡咯复合泡沫体的电活性在10GHz的微波频率下测量为自由场传输损耗，并以“-dB”表示。 具有尺寸分级电导率/活性的聚氨酯/聚吡咯复合泡沫体构成新的散料吸收体。
-
公开(公告)号：US5428221A
公开(公告)日：1995-06-27
申请号：US454165
申请日：1989-12-21
申请人： Boyd B. Bushman
发明人： Boyd B. Bushman
CPC分类号： F41G7/2226 , F41G7/2253 , F41G7/2286 , F41G7/2293 , F41H11/00 , G01S17/026
摘要： A detection system will detect and identify self-propelled objects, such as missiles, which create a hot exhaust plume. The exhaust plume has radiation which modulates with a frequency range of interest. This frequency range can be detected with various detectors, such as an infrared detector, an ultraviolet detector, or even a radio frequency detector. Guided missiles have radiation frequencies which are much higher than the radiation frequencies of jet aircraft and of reciprocating engines. A filter will filter the output signals from the detector, and discard those outside of the frequency range of interest. A warning signal will indicate if frequencies are encountered within the frequency range of interest.
摘要翻译： 检测系统将检测并识别自走式物体，如导弹，产生热排气羽流。 排气羽流具有在感兴趣的频率范围内调制的辐射。 该频率范围可以用诸如红外检测器，紫外检测器或甚至射频检测器的各种检测器来检测。 引导导弹的辐射频率远高于喷气飞机和往复式发动机的辐射频率。 滤波器将对来自检测器的输出信号进行滤波，并丢弃感兴趣的频率范围之外的信号。 警告信号将指示在感兴趣的频率范围内是否遇到频率。
-
-
-
-
-
-
-
-
-
搜索结果
366 条记录 (耗时 0.031 秒)
