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1. 发明申请

WO2009099823A1 FIBER OPTIC ACCELERATION AND DISPLACEMENT SENSORS 审中-公开
标题翻译：光纤加速度和位移传感器
公开(公告)号：WO2009099823A1
公开(公告)日：2009-08-13
申请号：PCT/US2009/032196
申请日：2009-01-28
申请人： THE GOVERNMENT OF THE UNITED STATES OF AMERICA, as represented by THE SECRETARY OF THE NAVY , LAGAKOS, Nicholas , BUCARO, Joseph, A. , JARZYNSKI, Jacek
发明人： LAGAKOS, Nicholas , BUCARO, Joseph, A. , JARZYNSKI, Jacek
IPC分类号： G01P3/36
CPC分类号： G02B6/3514 , G01D5/268 , G01D5/30 , G01P15/0802 , G01P15/093 , G01P2015/0828 , G02B6/3552 , G02B6/3558 , G02B6/3566 , G02B6/3594
摘要： A fiber optic sensor for detecting acceleration or displacement includes a fiber optic probe with a multimode transmitting optical fiber, a multimode receiving optical fiber and a edge reflector spaced apart from the fiber probe. The reflector moves in a transverse direction substantially normal to the longitudinal axis of the fiber optic probe, so the amount of light received by the receiving fiber indicates a relative acceleration or a relative displacement of the reflective surface with respect to the fiber probe in the transverse direction of motion of the edge of the reflector. The reflector can be mounted on a cantilever beam. The sensor can have one transmitting fiber, two receiving fiber, and a reflector with two edges, each edge partially covering one of the receiving fibers. A triaxial sensor system has at least two two-fiber sensors.
摘要翻译：用于检测加速度或位移的光纤传感器包括具有多模发射光纤的光纤探针，多模接收光纤和与光纤探头间隔开的边缘反射器。反射器在基本上垂直于光纤探针的纵向轴线的横向方向上移动，因此由接收光纤接收的光量表示反射表面相对于光纤探头在横向上的相对加速度或相对位移反射器边缘的运动方向。反射器可以安装在悬臂梁上。传感器可以具有一个发送光纤，两个接收光纤和一个具有两个边缘的反射器，每个边缘部分地覆盖一个接收光纤。三轴传感器系统具有至少两个双纤维传感器。

2. 发明申请

WO2009123827A2 INTENSITY MODULATED FIBER OPTIC STRAIN SENSOR 审中-公开
标题翻译：强度调制光纤光学传感器
公开(公告)号：WO2009123827A2
公开(公告)日：2009-10-08
申请号：PCT/US2009/036457
申请日：2009-03-09
申请人： THE GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY , LAGAKOS, Nicholas , BUCARO, Joseph, A. , JARZYNSKI, Jacek
发明人： LAGAKOS, Nicholas , BUCARO, Joseph, A. , JARZYNSKI, Jacek
IPC分类号： G02B6/00
CPC分类号： G01D5/268 , G02B6/022
摘要： A strain sensor includes an optical fiber with at least one optical fiber, a reflector body with a reflective surface, a housing affixed to the optical fiber probe and to the reflector body. The reflective surface is spaced apart at a distance d from the ends of the probe's fibers and receives light from the end of the fiber and to reflect at least a portion of the light into the end of the fiber. The housing is attached to the fiber probe at a first end of the housing and attached to the reflector body at a second end of the housing. The housing is affixed to the material to be measured, and in the material causes a change in gap between the fiber end and the reflective surface, modulating the amount of light received in the receiving fiber, detectable by a photodetector connected to the receiving fiber.
摘要翻译：应变传感器包括具有至少一个光纤的光纤，具有反射表面的反射体，固定到光纤探针的壳体和反射体。反射表面与探头的纤维的端部距离d间隔开，并从光纤的端部接收光，并将至少一部分光反射到光纤的端部。壳体在壳体的第一端处附接到光纤探针，并且在壳体的第二端处附接到反射体。壳体被固定在待测量的材料上，并且在材料中导致光纤端和反射表面之间的间隙变化，调制接收光纤中接收的光量，可由连接到接收光纤的光电检测器检测。

3. 发明申请

WO2018204642A1 FLOATING BASE VECTOR SENSOR 审中-公开
公开(公告)号：WO2018204642A1
公开(公告)日：2018-11-08
申请号：PCT/US2018/030889
申请日：2018-05-03
申请人： THE GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY
发明人： ZALALUTDINOV, Maxim, K. , HOUSTON, Brian, H. , PHOTIADIS, Douglas, M. , BUCARO, Joseph, A.
IPC分类号： G01H3/06 , G01P3/66 , G01F1/704
CPC分类号： G01S3/8034 , G01F1/28 , G01F1/704 , G01H9/00 , G01P5/26 , G01S3/801
摘要： Systems and methods are provided for sensing acoustic signals using a floating base vector sensor. A vector sensor according to an embodiment of the present disclosure can be used to detect and characterize low frequency sound wave(s) in a viscous medium (e.g., air, water, etc.) by detecting a periodic motion of the media particles associated with the sound wave(s). The orientation of the particle velocity deduced from such measurements can provide information regarding the wave vector of the sound wave(s), can define the direction of arrival (DOA) for the acoustic signal, and can assist locating the source of the sound of interest.

4. 发明申请

WO2007044103A2 MULTIPLEXED FIBER OPTIC SENSOR SYSTEM 审中-公开
标题翻译：多路复用光纤传感器系统
公开(公告)号：WO2007044103A2
公开(公告)日：2007-04-19
申请号：PCT/US2006/027648
申请日：2006-07-14
申请人： THE GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY
发明人： LAGAKOS, Nicholas , BUCARO, Joseph, A.
IPC分类号： G02B6/00 , G02B6/04 , G02B6/06
CPC分类号： G02B6/04 , G01D5/35383 , G01H9/004 , G01K11/32 , G02B6/2804 , G02B6/2808
摘要： A multiplexed fiber optic sensor system including a first optical fiber 119 having a first end arranged to receive light from a light source, at least two fiber optic sensors 116, 117, and smaller diameter optical fibers 113, 114 arranged between the first optical fiber and one of the sensors for transmitting light from the first optical fiber to that sensor. The sensors can be static or dynamic pressure sensors, strain sensors, temperature sensors or other environmental sensors. A fiber optic static pressure sensor with cartridge housing 200 with an end exposed to the atmosphere, a thin flexible membrane 240 covering the exposed end of the cartridge housing, and a fiber bundle 230 disposed within the cartridge housing with a first polished end for transmitting light toward the membrane, the housing arranged to maintain the membrane at a distance from the first end of the fiber in a direction along a fiber axis, with free space between the first fiber end and the protected side of the flexible membrane.
摘要翻译：一种复用光纤传感器系统，包括第一光纤119，第一光纤119具有布置成从光源接收光的第一端，布置在第一光纤和第二光纤之间的至少两个光纤传感器116,117和较小直径的光纤113,114; 用于将光从第一光纤传输到该传感器的传感器之一。传感器可以是静态或动态压力传感器，应变传感器，温度传感器或其他环境传感器。一种光纤静压传感器，其具有端部暴露于大气的盒壳体200，覆盖盒壳体的暴露端的薄柔性膜240和设置在盒壳体内的纤维束230，第一抛光端部用于透射光所述壳体被布置成将膜沿着纤维轴线的方向保持在距离纤维的第一端一定距离处，在柔性膜的第一纤维端和受保护侧之间具有自由空间。

5. 发明申请

WO2006022888A1 FIBER OPTIC PRESSURE SENSOR 审中-公开
标题翻译：光纤压力传感器
公开(公告)号：WO2006022888A1
公开(公告)日：2006-03-02
申请号：PCT/US2005/013387
申请日：2005-04-12
申请人： THE GOVERNMENT OF THE UNITED STATES OF AMERICA, as represented by THE SECRETARY OF THE NAVY
发明人： LAGAKOS, Nicholas , BUCARO, Joseph, A.
IPC分类号： G02B6/00
CPC分类号： G01L7/086 , G01D5/268 , G01D5/35367 , G01L9/0077 , G01P15/093
摘要： A fiber optic pressure sensor includes an optical fiber for transmitting light. The optical fiber has an axis. The fiber optic pressure sensor also includes an etched diaphragm perpendicular to the axis. The diaphragm includes an operative side located at a distance from the optical fiber sufficient to reflect a portion of the transmitted light into the optical fiber. The etched diaphragm includes a semiconductor, a dielectric, and/or a metal.
摘要翻译：光纤压力传感器包括用于传输光的光纤。光纤具有轴。光纤压力传感器还包括垂直于轴线的蚀刻膜片。隔膜包括位于距离光纤一定距离的操作侧，足以将透射光的一部分反射入光纤。蚀刻膜片包括半导体，电介质和/或金属。

6. 发明申请

WO2009102749A1 FIBER OPTIC PRESSURE SENSORS AND CATHETERS 审中-公开
标题翻译：光纤压力传感器和导管
公开(公告)号：WO2009102749A1
公开(公告)日：2009-08-20
申请号：PCT/US2009/033734
申请日：2009-02-11
申请人： THE GOVERNMENT OF THE USA , AS REPRESENTED BY THE SECRETARY OF THE NAVY , LAGAKOS, Nicholas , BUCARO, Joseph, A.
发明人： LAGAKOS, Nicholas , BUCARO, Joseph, A.
IPC分类号： G02B6/00
CPC分类号： G01D5/268 , G01L9/0077 , G02B6/262
摘要： A catheter with many fiber optic pressure sensors. The sensor diaphragm is formed from a wafer with a thin silicon layer and a silicon substrate layer separated by a silicon dioxide layer. A method includes masking and etching channels through the silicon substrate layer in a pattern of concentric circles to form a concentric circular etched channels and cylindrical unetched portions of the silicon substrate layer between the channels, exposing the silicon dioxide in the etched regions, and dissolving the exposed silicon dioxide to expose the crystalline silicon layer in the etched regions. The unetched cylindrical portion of the silicon substrate forms the diaphragm support element and the thin silicon layer forms the diaphragm. After applying a reflective coating to the exposed thin silicon layer, the support element face is adhered to the end face of a tubular housing, and a fiber optic probe is inserted in the tubular housing.
摘要翻译：具有许多光纤压力传感器的导管。传感器隔膜由具有薄硅层和由二氧化硅层隔开的硅衬底层的晶片形成。一种方法包括以同心圆的图案掩蔽和蚀刻通过硅衬底层的通道，以形成通道之间的硅衬底层的同心圆形蚀刻沟道和圆柱形未蚀刻部分，暴露蚀刻区域中的二氧化硅，并将暴露的二氧化硅以暴露蚀刻区域中的晶体硅层。硅衬底的未蚀刻的圆柱形部分形成隔膜支撑元件，并且薄硅层形成隔膜。在暴露的薄硅层上施加反射涂层之后，支撑元件面粘附到管状壳体的端面，并且光纤探针插入管状壳体中。

7. 发明申请

WO2011022182A1 MINIATURE FIBER OPTIC TEMPERATURE SENSORS 审中-公开
标题翻译：微型光纤温度传感器
公开(公告)号：WO2011022182A1
公开(公告)日：2011-02-24
申请号：PCT/US2010/043665
申请日：2010-07-29
申请人： THE GOVERMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY , LAGAKOS, Nicholas , BUCARO, Joseph, A.
发明人： LAGAKOS, Nicholas , BUCARO, Joseph, A.
IPC分类号： G01K5/52
CPC分类号： G01K5/62
摘要： An intensity-based fiber optic temperature sensor having a fiber probe with a multimode transmit/receive fiber, a reflector spaced apart from the end of the fiber, and a housing affixed at its ends to the fiber probe and reflector, the housing having a larger or smaller thermal expansion coefficient than those of the fiber probe and reflector. Temperature changes cause a change in the gap distance between the fiber end and the reflector, changing the amount of reflected light coupled into the optical fiber. Temperature sensors can also have a fiber probe with two or more multimode receiving fibers surrounding a transmitting fiber. Other temperature sensors include a fiber probe with a multimode transmitting fiber, a reference multimode receiving fiber and a sensing multimode receiving fiber for reducing noise effects.
摘要翻译：一种基于强度的光纤温度传感器，其具有具有多模发射/接收光纤的光纤探头，与该光纤的端部间隔开的反射器，以及在其端部固定到光纤探针和反射器的壳体，该壳体具有较大的或更小的热膨胀系数。温度变化导致光纤端和反射器之间的间隙距离的改变，改变耦合到光纤中的反射光的量。温度传感器还可以具有光纤探头，其具有围绕发射光纤的两个或多个多模接收光纤。其他温度传感器包括具有多模发射光纤的光纤探头，参考多模接收光纤和用于降低噪声影响的感测多模接收光纤。

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