公开(公告)号：US6016659A

公开(公告)日：2000-01-25

申请号：US961533

申请日：1997-10-30

申请人： Lawrence A. Westhoven, Jr. ,  David R. Smith

发明人： Lawrence A. Westhoven, Jr. ,  David R. Smith

IPC分类号： F25B9/02 ,  G05D23/19 ,  F25B19/02

CPC分类号： F25B9/02 ,  G05D23/1921 ,  F25B2309/022

摘要： A cryostat (12) with an actuator (40) which reacts to sensed temperature changes via externally controlled thermal heating generated therein. The actuator (40) is constructed with material having a high coefficient of thermal expansion. A flexible heating element (44) is embedded in the actuator material. A temperature sensor (62) provides a signal to cryostat control electronics. Responding to the temperature signal, the control circuitry (60) regulates current to the heating element (44) in the actuator (40). As the actuator temperature increases due to the heat generated by the heating element (44), it expands and moves open an attached needle (50) relative to an orifice (30), thereby increasing cryogen flow and regulating cooling. When the desired cold temperature is attained, current and heating are stopped. Flowing cryogen cools the actuator which shortens the actuator and pulls the attached needle into the orifice to regulate flow. The heating and cooling cycle repeats itself when the sensed temperature rises to an unacceptable value. The heating element (44) provides the ability to control actuator heating. It provides greater sensitivity and travel by inducing actuator temperature change rates and magnitude significantly larger than cryogen changes in temperature, which limit passive actuator designs.

摘要翻译： 具有致动器（40）的低温恒温器（12），其通过在其中产生的外部控制的热加热与感测的温度变化反应。 致动器（40）由具有高热膨胀系数的材料构成。 柔性加热元件（44）嵌入致动器材料中。 温度传感器（62）向低温恒温器控制电子器件提供信号。 响应温度信号，控制电路（60）调节致动器（40）中的加热元件（44）的电流。 随着致动器温度由于加热元件（44）产生的热量而增加，它相对于孔（30）膨胀并移动连接的针（50），从而增加制冷剂流并调节冷却。 当达到所需的冷温度时，停止电流和加热。 流动的冷冻剂冷却致动器，其缩短致动器并将附着的针拉入孔中以调节流量。 当感测到的温度升高到不可接受的值时，加热和冷却循环自身重复。 加热元件（44）提供控制致动器加热的能力。 它通过引发致动器温度变化率和幅度显着大于冷冻温度变化来提供更大的灵敏度和行程，这限制了被动执行机构的设计。

公开(公告)号：US08461501B2

公开(公告)日：2013-06-11

申请号：US12917699

申请日：2010-11-02

申请人： Darin S. Williams ,  Nicholas B. Saccketti ,  David B. Hatfield ,  Alexandra L. Blake ,  Richard J. Wright ,  Lawrence A. Westhoven, Jr.

发明人： Darin S. Williams ,  Nicholas B. Saccketti ,  David B. Hatfield ,  Alexandra L. Blake ,  Richard J. Wright ,  Lawrence A. Westhoven, Jr.

IPC分类号： F41G7/22 ,  H01Q1/42 ,  F41G7/00 ,  H01Q1/00

CPC分类号： F42B10/60

摘要： Embodiments of a guided munition are provided, as are embodiments of a method for equipping a guided munition with a self-deploying dome cover. In one embodiment, the guided munition includes a munition body, a seeker dome coupled to the munition body, and a self-deploying dome cover disposed over the seeker dome. The self-deploying dome cover is configured to deploy and expose the seeker dome during munition flight in response to aerodynamic forces acting on the self-deploying dome cover.

摘要翻译： 还提供了一种制导弹药的实施例，如同用于将导弹装备为自配置的半球盖的装备方法的实施例。 在一个实施例中，被引导的弹药包括弹药体，与弹药本体相连的寻求者穹顶，以及设置在寻求者穹顶上的自展穹顶罩。 自行部署的半球盖被配置为在弹药飞行期间部署和暴露探头穹顶，以响应作用在自身部署的穹顶罩上的空气动力。

公开(公告)号：US08642965B2

公开(公告)日：2014-02-04

申请号：US13118224

申请日：2011-05-27

申请人： Christopher L. Hernandez ,  Nicholas B. Saccketti ,  Jason R. Petty ,  Lawrence A. Westhoven, Jr.

发明人： Christopher L. Hernandez ,  Nicholas B. Saccketti ,  Jason R. Petty ,  Lawrence A. Westhoven, Jr.

IPC分类号： G02B5/00 ,  G01J5/02

CPC分类号： F41G7/008 ,  B33Y70/00 ,  B33Y80/00 ,  F41G7/2246 ,  F41G7/2253 ,  F41G7/2286 ,  F41G7/2293 ,  G02B27/0018 ,  Y10T29/49826

摘要： A stray light baffle for a seeker or other sensor system and a method for making the same are provided. The seeker, for example, may include a first receiver configured to receive an infrared signal, a second receiver configured to receive a radio frequency signal, a dichroic mirror configured to reflect the infrared signal toward the first receiver and to transmit the radio frequency signal toward the second receiver, and a stray light baffle having a coarse surface comprising a plurality of peaks and a plurality of valleys, wherein an average height of the plurality of peaks is greater than or equal to an average width of the plurality of valleys.

摘要翻译： 提供了一种用于探测器或其他传感器系统的杂散光挡板及其制造方法。 例如，寻求者可以包括被配置为接收红外信号的第一接收器，被配置为接收射频信号的第二接收器，配置成将红外信号反射到第一接收器的二向色反射镜，并将射频信号向 第二接收器和具有包括多个峰和多个谷的粗糙表面的杂散光挡板，其中多个峰的平均高度大于或等于多个谷的平均宽度。