公开(公告)号：US5883713A

公开(公告)日：1999-03-16

申请号：US931421

申请日：1997-09-16

申请人： John E. Davis ,  Marion Todd

发明人： John E. Davis ,  Marion Todd

IPC分类号： G01J3/453 ,  G01B9/02

CPC分类号： G01J3/4537

摘要： A Fourier transform interferometer for rapid scanning of scenes such as explosions wherein an incoming beam of light to be analyzed is split by a beam splitter into a first portion and a second portion. The first portion of the incoming light is sent down one arm of the interferometer where it passes through a rotating scanning cube for changing the path length in that arm of the interferometer. The light is then reflected by a retro mirror and sent back through the scanning cube to the beam splitter for sending a portion of the returning beam to a detector. The second portion of the incoming light is sent down a second arm of the interferometer where it passes through a compensator. The light is then reflected by a retro mirror and sent back through the compensator to the beam splitter for sending a portion of the returning beam to a detector. The first and second portions of the incoming light having differing path lengths interfere and the detector measures the fringes created.

摘要翻译： 一种用于快速扫描诸如爆炸的场景的傅里叶变换干涉仪，其中待分析的入射光束被分束器分裂成第一部分和第二部分。 入射光的第一部分被传送到干涉仪的一个臂上，在其中它通过旋转扫描立方体，以改变干涉仪臂中的路径长度。 然后光被后视镜反射并通过扫描立方体返回到分束器，以将一部分返回光束发送到检测器。 入射光的第二部分沿干涉仪的第二臂向下传送，其中它通过补偿器。 然后光被后视镜反射并通过补偿器返回到分束器，以将一部分返回光束发送到检测器。 具有不同路径长度的入射光的第一和第二部分干涉并且检测器测量所产生的边缘。

公开(公告)号：US5876850A

公开(公告)日：1999-03-02

申请号：US680088

申请日：1991-03-29

申请人： Raymund P. Skowronski ,  David Kramer

发明人： Raymund P. Skowronski ,  David Kramer

IPC分类号： C04B41/52 ,  C04B41/89 ,  C23C14/10 ,  C23C16/32 ,  B32B9/00 ,  B05D5/12

CPC分类号： C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C14/10 ,  C23C16/325 ,  C04B2111/00982 ,  Y10T428/24124 ,  Y10T428/24388 ,  Y10T428/252 ,  Y10T428/259 ,  Y10T428/30

摘要： A coating for sealing carbon-carbon composites against hydrogen. The coating comprises a first layer of silicon carbide and a second layer of a glass, glass-ceramic or a low-melting-point metal such as tin or an alloy thereof. Particularly when such second layer is a glass, e.g. an SiO.sub.2 -containing glass, or a glass-ceramic, preferably the silicon carbide coating is pretreated, e.g. by oxidation thereof to form a thin layer of SiO.sub.2 prior to application of the glass layer. The glass layer can be an SiO.sub.2 glass formed by sputtering or by decomposition of tetraethylorthosilicate (TEOS) applied to the oxidized silicon carbide coating. An alkali metal oxide, e.g. Na.sub.2 O, or an alkaline earth metal oxide, e.g. BaO, can be added to the SiO.sub.2 glass.

公开(公告)号：US5862800A

公开(公告)日：1999-01-26

申请号：US723233

申请日：1996-09-27

申请人： Myroslaw Marko

发明人： Myroslaw Marko

IPC分类号： F24S20/20 ,  F28F21/08 ,  F24J2/02

CPC分类号： F24J2/4649 ,  F24J2/07 ,  F28F21/087 ,  Y02E10/41

摘要： This invention provides a molten salt, solar central smooth tube receiver that is able to effectively absorb a peak solar flux of 1.42 MW/M.sup.2 by constructing the receiver from low cycle fatigue 625 alloy. Although higher flux levels are attainable for a smooth tube receiver by reducing the tube diameter to increase the salt's heat transfer coefficient, the receiver's size is optimized at this flux level to minimize capital and performance costs. Analogously, material provides substantial performance and capital cost improvements for receivers constructed with internally enhanced film coefficient tubes. The receiver's cost is minimized by utilizing autogenously welded and drawn tubing with the weld located at the tube's neutral axis to provide minimal strain at the weld.

摘要翻译： 本发明提供了一种熔融盐太阳能中心光滑管接收器，通过从低循环疲劳625合金构造接收器，能够有效地吸收1.42 MW / M2的峰值太阳能通量。 尽管通过减小管直径以增加盐的传热系数，可以获得更高的通量水平，对于平滑的管接收器，接收器的尺寸在该通量水平下被优化以最小化资本和性能成本。 类似地，材料为使用内部增强膜系数管构造的接收器提供了显着的性能和资本成本改进。 通过使用自动焊接和拉制管道，接收器的成本最小化，焊接位于管中性轴线处，以在焊缝处提供最小的应变。

公开(公告)号：US5862670A

公开(公告)日：1999-01-26

申请号：US931420

申请日：1997-09-16

申请人： Tibor I. Lak

发明人： Tibor I. Lak

IPC分类号： B64G1/00 ,  B64G1/14 ,  B64G1/40 ,  B64G5/00 ,  F02K9/54 ,  F17C5/02 ,  F25B19/00

CPC分类号： B64G1/007 ,  B64G1/402 ,  B64G5/00 ,  F02K9/54 ,  F17C5/02 ,  B64D2013/0648 ,  B64D2013/0659 ,  B64G1/002 ,  B64G1/14 ,  B64G1/401 ,  F17C2201/0119 ,  F17C2201/032 ,  F17C2201/052 ,  F17C2205/0326 ,  F17C2205/0335 ,  F17C2209/234 ,  F17C2221/011 ,  F17C2221/012 ,  F17C2221/017 ,  F17C2223/0153 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2227/0135 ,  F17C2227/0341 ,  F17C2227/04 ,  F17C2227/045 ,  F17C2250/043 ,  F17C2250/0443 ,  F17C2260/042 ,  F17C2270/0136 ,  F17C2270/0194 ,  F17C2270/0197 ,  Y02E60/321 ,  Y02T50/56

摘要： Leakage of propellants such as oxygen and hydrogen in an enclosed environment in the atmosphere can lead to fires or explosions. For storage tanks on reusable launch vehicles such as the space shuttle where propellant is to be stored in the cargo bay of the vehicle, the storage tank should be filled while the vehicle is at a safe altitude to avoid the dangers associated with propellant leakage. The invention a process for filling propellant tanks at safe altitudes where if there is propellant leakage ignition will not occur. The process involves launching the vehicle with an inert gas in the storage tanks, dumping the inert gas and filling the tanks in the cargo bay from the main propellant tanks during the launch once the vehicle is at a safe altitude. The propellant can be dumped overboard and the storage tanks filled with an inert gas in case of a mission abort if the vehicle needs to make an emergency landing.

摘要翻译： 大气中封闭环境中的推进剂如氧气和氢气的泄漏可能导致火灾或爆炸。 对于可重复使用的运载火箭（如将推进剂储存在车辆货舱中的航天飞机）的储存罐，当车辆处于安全高度时，储罐应充满，以避免与推进剂泄漏有关的危险。 本发明是用于在安全高度处填充推进剂罐的方法，如果有推进剂泄漏点火将不会发生。 该过程包括在惰性气体中将车辆发射到储存罐中，倾倒惰性气体，并且在车辆处于安全高度的时候，在发射期间将货舱从主推进剂罐中装入货舱。 如果车辆需要进行紧急着陆，推进剂可能会被甩在船上，并且储存罐装满惰性气体，以防任务中止。

公开(公告)号：US5809187A

公开(公告)日：1998-09-15

申请号：US839994

申请日：1997-04-24

申请人： James L. Peck, Jr. ,  Stephen W. Clausi

发明人： James L. Peck, Jr. ,  Stephen W. Clausi

IPC分类号： G02B6/28

CPC分类号： G02B6/2804 ,  G02B6/2848

摘要： This invention relates to fiber optic networks for the two way communication of light signals. One optic fiber may carry bidirectional signals to many nodes connected to the optic fiber by bidirectional passive optic couplers. Passive unidirectional to bidirectional passive optic couplers can bridge between bidirectional optic fiber networks and unidirectional fiber optic networks. Thus optical signals can be transported to and from each node to all other nodes such that each node is in contact with all the other nodes on the network.

摘要翻译： 本发明涉及用于光信号双向通信的光纤网络。 一个光纤可以通过双向无源光耦合器向连接到光纤的许多节点携带双向信号。 被动单向双向无源光耦合器可以在双向光纤网络和单向光纤网络之间桥接。 因此，光信号可以从每个节点传送到所有其他节点，使得每个节点与网络上的所有其他节点接触。

公开(公告)号：US5761357A

公开(公告)日：1998-06-02

申请号：US840005

申请日：1997-04-24

申请人： James L. Peck, Jr.

发明人： James L. Peck, Jr.

IPC分类号： G02B6/28 ,  G02B6/26

CPC分类号： G02B6/2848

摘要： An optical coupler for use in fiber optics for splitting light signals into two or more portions wherein the intensity of the light on the outgoing optical fibers can be accurately controlled. The optical coupler consists of a sending GRIN lens and two or more adjacent receiving GRIN lenses wherein a portion of each receiving GRIN lens has been removed and the receiving GRIN lenses are attached along a common border formed by the removed portion of the GRIN lenses.

摘要翻译： 一种用于光纤中的光耦合器，用于将光信号分解成两个或更多个部分，其中可以精确地控制出射光纤上的光的强度。 光耦合器包括发送GRIN透镜和两个或更多个相邻的接收GRIN透镜，其中已经去除了每个接收GRIN透镜的一部分，并且接收GRIN透镜沿着由GRIN透镜的去除部分形成的共同边界附接。

公开(公告)号：USD394039S

公开(公告)日：1998-05-05

申请号：US72587

申请日：1997-06-23

申请人： Darold B. Cummings

设计人： Darold B. Cummings

公开(公告)号：US5741596A

公开(公告)日：1998-04-21

申请号：US313002

申请日：1989-02-21

申请人： Raymund P. Skowronski ,  David Kramer

发明人： Raymund P. Skowronski ,  David Kramer

IPC分类号： C23C28/04 ,  B32B15/04 ,  B05D5/12 ,  B22F3/00

CPC分类号： C23C28/04 ,  Y10T428/12056 ,  Y10T428/31678

摘要： An oxidation protection coating for metal substrate surfaces. The coating, according to a preferred embodiment, comprises an initial or first layer of a glass-ceramic, such as a barium aluminosilicate composed chiefly of baria, silica and alumina; or mullite, composed of silica-alumina or, alternatively, baria-silica. Titanium dioxide, nickel oxide or SnO.sub.2 can be added. The next layer of the coating is comprised of alumina or silicon carbide. The third or final layer is comprised of a thin layer of silica or a high-silica material, e.g., a silica containing 4% B.sub.2 O.sub.3. For a thicker third layer, particles of a dark solid, such as boron silicide, ferrous oxide, ferric oxide, nickel oxide, manganese dioxide, carbon or silicon carbide, can be incorporated. The three-layer coating provides high emittance and low catalytic activity for the recombination of oxygen and nitrogen, as well as being a hydrogen diffusion barrier.

摘要翻译： 金属基材表面的氧化保护涂层。 根据优选实施方案，涂层包含初始或第一层玻璃陶瓷，例如主要由硼酸盐，二氧化硅和氧化铝组成的铝硅酸钡; 或莫来石，由二氧化硅 - 氧化铝组成，或者替代为二氧化硅。 可添加二氧化钛，氧化镍或SnO2。 涂层的下一层由氧化铝或碳化硅组成。 第三层或最后层由二氧化硅或高二氧化硅材料的薄层组成，例如含有4％B 2 O 3的二氧化硅。 对于较厚的第三层，可以引入黑色固体的颗粒，例如硅化硅，氧化亚铁，氧化铁，氧化镍，二氧化锰，碳或碳化硅。 三层涂层为氧和氮的复合以及氢扩散阻挡层提供高发射率和低催化活性。

公开(公告)号：US5735469A

公开(公告)日：1998-04-07

申请号：US653851

申请日：1996-05-28

申请人： Sergio E. Rodriguez ,  James P. Maddox ,  Raymond J. Netzer ,  Alan Z. Ullman

发明人： Sergio E. Rodriguez ,  James P. Maddox ,  Raymond J. Netzer ,  Alan Z. Ullman

IPC分类号： H01S3/0953 ,  B05B7/00

CPC分类号： H01S3/0953

摘要： A compact diffuser for recovering pressure from a supersonic flow with boundary layers. Sharp splicer plates near the wails form boundary layer scoops and separate the flow into an inner coreflow chapel and outer chambers containing small supersonic ejector nobles. The coreflow without boundary layers undergoes a single near-normal shock to recover pressure. The boundary layers are pumped to the recovery pressure in the outer ejector chambers. The subsonic part of the boundary layer flow to the outer chambers can be choked against boundary layer scoop inlet corners to isolate the upstream flow. The leading edge angle of the splicers may be selected to help induce coreflow shocking.

摘要翻译： 用于从具有边界层的超音速流回收压力的紧凑型扩散器。 靠近窗户的尖锐的拼接板形成边界层勺，并将流分离成内芯流道教堂和包含小超音速弹射器贵族的外室。 没有边界层的芯流经历单次接近正常的冲击以恢复压力。 边界层被泵送到外部喷射器室中的恢复压力。 流到外室的边界层的亚音速部分可以被阻塞在边界层勺入口拐角上以隔离上游流。 可以选择捻接器的前缘角以帮助引起芯流冲击。

公开(公告)号：US5732003A

公开(公告)日：1998-03-24

申请号：US634003

申请日：1996-04-15

申请人： Stanley A. White ,  Jeffrey P. Woodard

发明人： Stanley A. White ,  Jeffrey P. Woodard

IPC分类号： H03H17/02 ,  G06F17/10

CPC分类号： H03H17/0219

摘要： Noise may be reduced or eliminated from a digital sawtooth signal representing the phase of a periodic signal. This may be done precisely, even when inexpensive fixed-point arithmetic is used. In one aspect of the invention, the input signal (noise plus true signal) 12 is filtered to produce, in succession: (a) mod one differentiated noise plus slope of true phase signal 28; (b) mod one differentiated noise plus slope of residual phase signal (true phase signal minus estimated slope of true phase signal) 36; (c) mod one differentiated noise 46; (d) estimated noise 62; and (e) smoothed phase signal 72. In a second aspect, a noisy phase signal 12 is extracted from a first arbitrary periodic signal and the above steps are used to generate a noise-reduced phase signal 72. The noise-reduced phase signal 72 is then used to generate a second arbitrary periodic signal of the same frequency.

摘要翻译： 可以从表示周期性信号的相位的数字锯齿波信号中减少或消除噪声。 这可以精确地完成，即使使用便宜的定点运算。 在本发明的一个方面，输入信号（噪声加真实信号）12被滤波以产生：（a）模仿一个微分噪声加上真相信号28的斜率; （b）将一个微分噪声加上残差相位信号的斜率（真相信号减去真相信号的估计斜率）36; （c）模仿一种差异化噪声46; （d）估计噪音62; 和（e）平滑的相位信号72.在第二方面，从第一任意周期信号中提取噪声相位信号12，并且使用上述步骤来产生降噪相位信号72.噪声降低相位信号72 然后用于产生相同频率的第二任意周期信号。