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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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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：US07746449B2
公开(公告)日：2010-06-29
申请号：US11940011
申请日：2007-11-14
IPC分类号： G01C3/08
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导致的接收部分的视场之间的变化。
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公开(公告)号：US20080278715A1
公开(公告)日：2008-11-13
申请号：US11747560
申请日：2007-05-11
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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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：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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7.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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公开(公告)号：US06556282B2
公开(公告)日：2003-04-29
申请号：US09946057
申请日：2001-09-04
IPC分类号： G01C308
CPC分类号： G01S17/58 , B64D45/08 , G01C23/005 , G01P5/26 , G01S7/4802 , G01S7/481 , G01S7/4812 , G01S7/4813 , G01S7/4817 , G01S7/483 , G01S17/42 , G01S17/87 , G01S17/88 , G01S17/933
摘要： A combined system of a LOAS and a LIDAR system comprises: a LIDAR arrangement of optical elements for generating a first coherent beam of light at a first predetermined wavelength; a LOAS arrangement of optical elements for generating a second coherent beam of light at a second predetermined wavelength; a dichroic filter optical element for directing the first and second coherent beams of light substantially on a first common optical path towards an aperture of a beam expander; at least one output optical element which directs both of the expanded first and second coherent beams of light from the system, the at least one output optical element also for receiving and directing reflections of the first and second coherent beams of light to the beam expander wherein the beam reflections are collected; and wherein the dichroic filter optical element separates and directs the collected light corresponding to the first coherent beam back to the LIDAR arrangement of optical elements for use in determining flow velocity, and separates and directs the collected light corresponding to the second coherent beam back to the LOAS arrangement of optical elements for use in detecting at least one object.
摘要翻译： LOAS和LIDAR系统的组合系统包括：用于产生第一预定波长的第一相干光束的光学元件的LIDAR布置; 用于产生第二预定波长的第二相干光束的光学元件的LOAS布置; 二向色滤光器光学元件，用于将第一和第二相干光束基本上引导到第一公共光路上朝向光束扩展器的孔径; 引导来自系统的扩展的第一和第二相干光束两者的至少一个输出光学元件，所述至少一个输出光学元件还用于接收和引导第一和第二相干光束到光束扩展器的反射，其中 收集光束反射; 并且其中所述二向色滤光器光学元件将对应于所述第一相干光束的所收集的光分离并引导回到用于确定流速的光学元件的LIDAR布置，并且将对应于所述第二相干光束的所收集的光分离并引导回到 用于检测至少一个物体的光学元件的LOAS布置。
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公开(公告)号：US06542227B2
公开(公告)日：2003-04-01
申请号：US09946048
申请日：2001-09-04
IPC分类号： G01P336
CPC分类号： G01S7/4817 , G01S7/4812 , G01S7/4813 , G01S7/483 , G01S17/42 , G01S17/58 , G01S17/87 , G01S17/88 , G01S17/933
摘要： A LIDAR system for measuring flow velocity in three axes comprises: a LIDAR arrangement of optical elements for generating a coherent beam of light and directing the coherent beam of light by at least one rotationally operated optical element from the system with a predetermined pattern, the at least one rotationally operated optical element also for receiving reflections from particles along the predetermined pattern and directing the beam reflections to a light detector which converts the beam reflections into representative electrical signals; and a processor for detecting bursts from the electrical signals which are representative of light beam reflections from at least one particle substantially at a corresponding position along the predetermined pattern, and for computing a Doppler frequency for each of a selected plurality of detected bursts from the signal content thereof. The processor also capable of associating the selected plurality of detected bursts with their corresponding positions along the predetermined pattern and for computing a three axis flow velocity measurement from at least three of the selected plurality of computed Doppler frequencies and their corresponding positions along the predetermined pattern. A method of measuring flow velocity in three axes is further disclosed.
摘要翻译： 用于测量三个轴中的流速的激光雷达系统包括：用于产生相干光束的光学元件的激光雷达（LIDAR）布置，并且由具有预定图案的系统的至少一个旋转操作的光学元件引导相干光束， 至少一个旋转操作的光学元件，还用于接收沿着预定图案的颗粒的反射，并将光束反射引导到将光束反射转换成代表性电信号的光检测器; 以及处理器，用于从代表来自至少一个粒子的光束反射的电信号中检测突发，所述至少一个粒子基本上在沿着预定图案的对应位置处，并且用于从所述信号计算所选择的多个检测到的脉冲串中的每一个的多普勒频率 其含量。 处理器还能够将所选择的多个检测到的突发与其预定模式的对应位置相关联，并且用于从所选择的多个计算多普勒频率中的至少三个及其沿预定模式的对应位置计算三轴流速度测量。 进一步公开了一种测量三轴流速的方法。
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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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