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公开(公告)号：US20110239621A1
公开(公告)日：2011-10-06
申请号：US12798095
申请日：2010-03-30
CPC分类号： F23N5/16 , F23N2041/20 , F23R2900/00013 , Y02T50/677
摘要： Disclosed is a fuel injector for a gas turbine engine combustor that includes a fuel nozzle for injecting fuel into the gas turbine engine combustor and a fiber optic microphone operatively associated with the fuel nozzle for measuring acoustic pressure differentials within a combustion chamber of the gas turbine engine combustor. The fiber optic microphone includes a fiber bundle having at least one light transmitting fiber and one light receiving fiber; and a dynamic pressure-sensing diaphragm operatively spaced apart from a sensing end of the fiber bundle. The diaphragm has a reflective surface and is formed from a material capable of withstanding temperatures associated with flame exposure. The diaphragm is adapted and configured for deflecting in response to acoustic pressure changes within the combustion chamber. The fuel injector can further include a mechanism for measuring the temperature of the diaphragm, so as to account for changes in the material properties of the diaphragm caused by temperature changes in the combustion chamber.
摘要翻译： 公开了一种用于燃气涡轮发动机燃烧器的燃料喷射器，其包括用于将燃料喷射到燃气涡轮发动机燃烧器中的燃料喷嘴和与燃料喷嘴可操作地相关联的光纤麦克风，用于测量燃气涡轮发动机的燃烧室内的声压差 燃烧器。 光纤麦克风包括具有至少一个光传输光纤和一个光接收光纤的光纤束; 以及与纤维束的感测端部可操作地间隔开的动态压力感测隔膜。 隔膜具有反射表面，并且由能够承受与火焰暴露相关的温度的材料形成。 隔膜适于和构造成响应于燃烧室内的声压变化而偏转。 燃料喷射器还可以包括用于测量隔膜的温度的机构，以便考虑由燃烧室的温度变化引起的隔膜的材料特性的变化。
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公开(公告)号：US07697125B2
公开(公告)日：2010-04-13
申请号：US11747560
申请日：2007-05-11
IPC分类号： G01B11/26
CPC分类号： G01S7/4812 , G01S7/4817 , G01S7/483 , G01S17/10 , G01S17/42 , G01S17/88 , G01S17/89 , G02B19/0028 , G02B19/0085 , G02B26/105
摘要： A LADAR has adjustable operational parameters to accommodate surveillance of a particular site. The LADAR includes a controller, a laser source governed by the controller to generate a laser beam pulsed at a pulse repetition rate, an optical scanner, a first set of optics, a first drive assembly governed by the controller, a second drive assembly governed by the controller, a light detector, a second set of optics for guiding laser echo pulses, and a processor coupled to the light detector to accommodate surveillance of the particular site.
摘要翻译： LADAR具有可调整的操作参数，以适应特定场所的监视。 LADAR包括控制器，由控制器控制的激光源，以产生以脉冲重复频率脉冲的激光束，光学扫描器，第一组光学器件，由控制器控制的第一驱动组件，由第一驱动组件控制的第二驱动组件 所述控制器，光检测器，用于引导激光回波脉冲的第二组光学器件，以及耦合到所述光检测器以适应所述特定位置的监视的处理器。
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3.发明授权Combined laser altimeter and ground velocity measurement apparatus and a fiber optic filter edge detector of doppler shifts for use therein 有权组合的激光高度计和地面速度测量装置以及用于其中的多普勒频移的光纤滤波器边缘检测器公开(公告)号：US07379166B2
公开(公告)日：2008-05-27
申请号：US11329443
申请日：2006-01-11
申请人： Clinton T. Meneely , Gary E. Halama
发明人： Clinton T. Meneely , Gary E. Halama
CPC分类号： G01S17/87 , G01C5/005 , G01P3/366 , G01S7/4812 , G01S7/4817 , G01S17/58 , G01S17/933
摘要： A fiber optic filter edge detector of Doppler shifted light comprises: a laser source for emitting pulsed laser light substantially over a first fiber optic path; an optical lens for directing laser light emitted from the first fiber optic path to free-space and for receiving laser light returns from free-space and focusing the laser light returns to the first fiber optic path; an edge filter optical element fiber coupled to the first fiber optic path for receiving the laser light returns, the edge filter optical element operative to transmit a first portion of the laser light returns through a second fiber optic path and to reflect a second portion of the laser light returns through a third fiber optic path; and at least one light detector optically coupled to the second and third fiber optic paths.
摘要翻译： 多普勒偏移光的光纤滤波器边缘检测器包括：用于基本上在第一光纤路径上发射脉冲激光的激光源; 用于将从第一光纤路径发射的激光引导到自由空间并用于接收激光的光学透镜从自由空间返回并且聚焦激光返回到第一光纤路径; 耦合到用于接收激光的第一光纤路径的边缘滤波器光学元件光纤返回，用于透射激光的第一部分的边缘滤光器光学元件通过第二光纤路径返回并且反射第二部分 激光通过第三光纤通路返回; 以及光学耦合到第二和第三光纤路径的至少一个光检测器。
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公开(公告)号：US20080030709A1
公开(公告)日：2008-02-07
申请号：US11460699
申请日：2006-07-28
申请人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
发明人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
摘要： A laser-based altimeter for use on-board an aircraft comprises: a first housing including a hollow cavity and an exit aperture, and a second housing including a hollow cavity and an entrance aperture. A laser source and a plurality of first optical elements are fixedly supported in a compact configuration within the hollow cavity of the first housing. The plurality of first optical elements directs laser beams generated by the laser source from a first optical path to a second optical path which exits the first housing through the exit aperture. At least one second optical element is configured within the hollow cavity of the second housing to form a telescope with a predetermined field of view. The telescope receives at the entrance aperture reflections of the pulsed laser beams from objects within the field of view thereof and focuses the received reflections substantially to a focal point. A light detector is included for receiving and converting the focused reflections into electrical signals representative thereof. The first and second housings are fixedly secured in alignment with respect to each other to permit the second optical path of the pulsed laser beams to be adjusted within the field of view of the telescope. A mirror apparatus is the only first optical element of the plurality that is fixedly adjustable for directing the second optical path within the field of view of the telescope, the mirror apparatus being lockable in place after final adjustment. The first and second housings may be part of a common housing.
摘要翻译： 用于飞机上的基于激光的高度计包括：包括中空腔和出口孔的第一壳体，以及包括中空腔和入口孔的第二壳体。 激光源和多个第一光学元件以紧凑的形式固定地支撑在第一壳体的中空腔内。 多个第一光学元件将由激光源产生的激光束从第一光路引导到通过出射孔离开第一壳体的第二光路。 至少一个第二光学元件构造在第二壳体的中空腔内以形成具有预定视场的望远镜。 望远镜在其视场内的物体的入射孔径反射中接收脉冲激光束，并将接收的反射基本上聚焦到焦点。 包括一个光检测器，用于接收并将聚焦的反射转换成代表其的电信号。 第一和第二壳体相对于彼此固定地固定，以允许脉冲激光束的第二光路在望远镜的视场内被调节。 镜子装置是多个中唯一的第一光学元件，其可固定地可调节以将第二光路引导到望远镜的视场内，镜装置可在最终调节之后被锁定就位。 第一和第二壳体可以是公共壳体的一部分。
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公开(公告)号：US07400386B2
公开(公告)日：2008-07-15
申请号：US11443820
申请日：2006-05-30
CPC分类号： G01S17/87 , G01C5/005 , G01P3/366 , G01S7/4812 , G01S7/4817 , G01S17/58 , G01S17/933
摘要： Combined laser-based apparatus for determining both altitude and ground velocity of an aircraft comprises: a laser source for emitting pulsed laser beams substantially at a predetermined wavelength; a plurality of first optical elements for directing the laser beams from a first optical path to a second optical path which exits the first optical elements; a plurality of second optical elements configured to form a telescope, the second optical path and telescope field of view being fixedly co-aligned; an optical scanner for directing the second optical path and telescope field of view to desired ground positions while maintaining the co-alignment thereof; the telescope for receiving Doppler wavelength shifted reflections of the pulsed laser beams and directing the received ground reflections substantially over a third optical path; an optical filter element for separating the ground reflections of the third optical path into first and second portions that are dependent on the Doppler wavelength shift of the ground reflections; and processing means for determining altitude and ground velocity of the aircraft based on the first and second portions.
摘要翻译： 用于确定飞行器的高度和地面速度的组合的基于激光的装置包括：用于发射基本上以预定波长的脉冲激光束的激光源; 用于将激光束从第一光路引导到离开第一光学元件的第二光路的多个第一光学元件; 配置成形成望远镜的多个第二光学元件，第二光路和望远镜视场被固定地对齐; 光学扫描器，用于将第二光路和望远镜的视野引导到期望的接地位置，同时保持其对准; 用于接收脉冲激光束的多普勒波长偏移反射并将接收到的地面反射基本上引导到第三光路上的望远镜; 光滤波器元件，用于将第三光路的接地反射分离为第一和第二部分，这取决于地面反射的多普勒波长偏移; 以及用于基于第一和第二部分确定飞行器的高度和地面速度的处理装置。
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公开(公告)号：US07106424B2
公开(公告)日：2006-09-12
申请号：US10386334
申请日：2003-03-11
申请人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
发明人： Clinton T. Meneely , Mark D. Ray , Gary E. Halama
IPC分类号： G01C3/08
摘要： A laser-based altimeter for use on-board an aircraft comprises: a first housing including a hollow cavity and an exit aperture, and a second housing including a hollow cavity and an entrance aperture. A laser source and a plurality of first optical elements are fixedly supported in a compact configuration within the hollow cavity of the first housing. The plurality of first optical elements directs laser beams generated by the laser source from a first optical path to a second optical path which exits the first housing through the exit aperture. At least one second optical element is configured within the hollow cavity of the second housing to form a telescope with a predetermined field of view. The telescope receives at the entrance aperture reflections of the pulsed laser beams from objects within the field of view thereof and focuses the received reflections substantially to a focal point. A light detector is included for receiving and converting the focused reflections into electrical signals representative thereof. The first and second housings are fixedly secured in alignment with respect to each other to permit the second optical path of the pulsed laser beams to be adjusted within the field of view of the telescope. A mirror apparatus is the only first optical element of the plurality that is fixedly adjustable for directing the second optical path within the field of view of the telescope, the mirror apparatus being lockable in place after final adjustment. The first and second housings may be part of a common housing.
摘要翻译： 用于飞机上的基于激光的高度计包括：包括中空腔和出口孔的第一壳体，以及包括中空腔和入口孔的第二壳体。 激光源和多个第一光学元件以紧凑的形式固定地支撑在第一壳体的中空腔内。 多个第一光学元件将由激光源产生的激光束从第一光路引导到通过出射孔离开第一壳体的第二光路。 至少一个第二光学元件构造在第二壳体的中空腔内以形成具有预定视场的望远镜。 望远镜在其视场内的物体的入射孔径反射中接收脉冲激光束，并将接收的反射基本上聚焦到焦点。 包括一个光检测器，用于接收并将聚焦的反射转换成代表其的电信号。 第一和第二壳体相对于彼此固定地固定，以允许脉冲激光束的第二光路在望远镜的视场内被调节。 镜子装置是多个中唯一的第一光学元件，其可固定地可调节以将第二光路引导到望远镜的视场内，镜装置可在最终调节之后被锁定就位。 第一和第二壳体可以是公共壳体的一部分。
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公开(公告)号：US3986139A
公开(公告)日：1976-10-12
申请号：US550781
申请日：1975-02-18
IPC分类号： H01S3/038 , H01S3/0971 , H01S3/09 , H01S3/22
CPC分类号： H01S3/09716 , H01S3/038
摘要： A miniature TEA laser system having a pair of electrodes mounted within the laser cavity and a radioactive source in the form of a beta particle emitter located within the cavity adjacent the electrodes. The electrodes are spaced no more than the maximum beta particle range apart so that the radioactive emission can take place within the space between electrodes thereby uniformly preionizing the active laser medium within the cavity.
摘要翻译： 具有安装在激光腔内的一对电极的微型TEA激光系统和位于邻近电极的空腔内的β粒子发射体形式的放射源。 电极的间隔不超过最大β粒子范围，使得放射性发射可以在电极之间的空间内发生，从而在空腔内均匀地预活化激活的激光介质。
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公开(公告)号：US20090123158A1
公开(公告)日：2009-05-14
申请号：US11940011
申请日：2007-11-14
IPC分类号： H04B10/00
CPC分类号： G01S7/4972 , G01S7/4812 , G01S7/4817 , G01S17/42
摘要： A light detection and ranging system includes a mirror unit rotating around a scan axis. The mirror unit includes a receiving portion and a transmitting portion offset by an angle about the scan axis relative to a surface plane of the receiving portion. Respective centroids of the receiving and transmitting portions are positioned at a common point on the scan axis while the receiving and transmitting portions rotate around the scan axis. A transmitter transmits a light pulse toward the mirror unit. The transmitting portion is positioned to reflect the light pulse toward a target. A receiver is positioned to reflect the light pulse reflected from the target toward the receiver. The angle offset compensates for a change between a cone of illumination of the transmitting portion and a field-of-view of the receiving portion resulting from the rotation of the mirror unit.
摘要翻译： 光检测和测距系统包括围绕扫描轴旋转的反射镜单元。 反射镜单元包括接收部分和透射部分，其相对于接收部分的表面平面偏移围绕扫描轴线的角度。 接收和传送部分的各个重心位于扫描轴上的公共点上，同时接收和传送部分围绕扫描轴旋转。 发射器向镜单元发送光脉冲。 发射部分被定位成将光脉冲反射到目标。 接收器被定位成将从目标反射的光脉冲反射到接收器。 角度偏移补偿透镜部分的照明锥体与由反射镜单元的旋转产生的接收部分的视场之间的变化。
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公开(公告)号：US07079228B2
公开(公告)日：2006-07-18
申请号：US10825062
申请日：2004-04-15
CPC分类号： G01S17/87 , G01C5/005 , G01P3/366 , G01S7/4812 , G01S7/4817 , G01S17/58 , G01S17/933
摘要： Combined laser-based apparatus for determining both altitude and ground velocity of an aircraft comprises: a laser source for emitting pulsed laser beams substantially at a predetermined wavelength; a plurality of first optical elements for directing the laser beams from a first optical path to a second optical path which exits the first optical elements; a plurality of second optical elements configured to form a telescope, the second optical path and telescope field of view being fixedly co-aligned; an optical scanner for directing the second optical path and telescope field of view to desired ground positions while maintaining the co-alignment thereof; the telescope for receiving Doppler wavelength shifted reflections of the pulsed laser beams and directing the received ground reflections substantially over a third optical path; an optical filter element for separating the ground reflections of the third optical path into first and second portions that are dependent on the Doppler wavelength shift of the ground reflections; and processing means for determining altitude and ground velocity of the aircraft based on the first and second portions.
摘要翻译： 用于确定飞行器的高度和地面速度的组合的基于激光的装置包括：用于发射基本上以预定波长的脉冲激光束的激光源; 用于将激光束从第一光路引导到离开第一光学元件的第二光路的多个第一光学元件; 配置成形成望远镜的多个第二光学元件，第二光路和望远镜视场被固定地对齐; 光学扫描器，用于将第二光路和望远镜的视野引导到期望的接地位置，同时保持其对准; 用于接收脉冲激光束的多普勒波长偏移反射并将接收到的地面反射基本上引导到第三光路上的望远镜; 光滤波器元件，用于将第三光路的接地反射分离成依赖于地面反射的多普勒波长偏移的第一和第二部分; 以及用于基于第一和第二部分确定飞行器的高度和地面速度的处理装置。
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10.发明授权System and method of identifying an object in a laser beam illuminated scene based on material types 失效基于材料类型识别激光束照明场景中物体的系统和方法公开(公告)号：US07026600B2
公开(公告)日：2006-04-11
申请号：US10789114
申请日：2004-02-26
IPC分类号： H01J40/14
CPC分类号： G06K9/4652 , G01N21/251 , G01N21/359 , G01S7/4802 , G01S7/484 , G01S17/87 , G01S17/89
摘要： A method of identifying an object in a laser beam illuminated scene based on material types comprises the steps of: emitting a pulsed beam of laser energy, each beam pulse comprising a plurality of different discrete wavelength emission components; illuminating a predetermined scene with the pulsed beam; receiving return laser pulses from objects within the illuminated scene, each return laser pulse comprising return components corresponding to the plurality of different discrete wavelength emission components; determining spectral reflectance values for the plurality of return components of each return laser pulse; determining a material type for each return laser pulse of the illuminated scene based on the plurality of reflectance values of the corresponding return pulse; indexing each determined material type to a position in the illuminated scene; and identifying an object in the illuminated scene based on material types and indexed positions thereof in the scene. A counterpart system for carrying out the method is also disclosed.
摘要翻译： 基于材料类型识别激光束照明场景中的物体的方法包括以下步骤：发射激光能量的脉冲束，每个束脉冲包括多个不同的离散波长发射分量; 用脉冲光照射预定场景; 从所述照明场景内的物体接收返回激光脉冲，每个返回激光脉冲包括对应于所述多个不同离散波长发射部件的返回分量; 确定每个返回激光脉冲的多个返回分量的光谱反射率值; 基于对应的返回脉冲的多个反射率值确定照明场景的每个返回激光脉冲的材料类型; 将每个确定的材料类型索引到照明场景中的位置; 并且基于场景中的材料类型和索引位置来识别照明场景中的对象。 还公开了用于执行该方法的对应系统。
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