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公开(公告)号：US20160089031A1
公开(公告)日：2016-03-31
申请号：US14872040
申请日：2015-09-30
Applicant: Darma Inc.
Inventor： Junhao Hu
IPC: A61B5/00 , A61B5/0476 , A61B5/021 , A61B5/11
CPC classification number: A61B5/0082 , A61B5/0022 , A61B5/0205 , A61B5/021 , A61B5/024 , A61B5/02405 , A61B5/0476 , A61B5/0816 , A61B5/1102 , A61B5/1116 , A61B5/1123 , A61B5/4812 , A61B5/6891 , A61B5/6892 , A61B5/7207 , A61B5/725 , A61B5/7257 , A61B5/746 , A61B2562/0233 , G01L1/245 , G06F19/00 , G16H40/67
Abstract: An intensity-based, micro-bending optical fiber sensor is disclosed herein, which is configured to acquire clean, stable, and reliable vital sign signals. Related systems and methods for vital sign monitoring are also provided herein. The sensor of various embodiments includes a multi-mode optical fiber, an LED light source, an LED driver, a receiver, and a single layer deformer structure. In various embodiments, the optical fiber and single layer deformer structure of the sensor are selected to meet specific parameters necessary to achieve a level of reliability and sensitivity needed to successfully monitor vital signs. In some embodiments, a specific sizing relationship exists between the optical fiber and the single layer deformer structure. In sonic embodiments, the sensor is configured to acquire ballistocardiograph waveforms.
Abstract translation: 本文公开了一种基于强度的微弯曲光纤传感器，其被配置为获取清洁，稳定且可靠的生命体征信号。 本文还提供了用于生命体征监测的相关系统和方法。 各种实施例的传感器包括多模光纤，LED光源，LED驱动器，接收器和单层变形器结构。 在各种实施例中，选择传感器的光纤和单层变形器结构以满足实现成功监测生命体征所需的可靠性和灵敏度水平所必需的特定参数。 在一些实施例中，光纤和单层变形器结构之间存在特定的尺寸关系。 在声音实施例中，传感器被配置为获取心轴图像波形。
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公开(公告)号：US20140147074A1
公开(公告)日：2014-05-29
申请号：US14169969
申请日：2014-01-31
Applicant: Weatherford/Lamb, Inc.
Inventor： John L. MAIDA, JR. , Alan D. KERSEY
IPC: G01L1/24
CPC classification number: G02B6/02314 , E21B47/123 , G01L1/242 , G01L1/245 , G01L1/246 , G01L11/025 , G02B6/021 , G02B6/022 , G02B6/02338 , G02B6/024 , G02B6/028 , G02B6/0281 , G02B6/262
Abstract: A side-hole optical cane for measuring pressure and/or temperature is disclosed. The side-hole cane has a light guiding core containing a sensor and a cladding containing symmetrical side-holes extending substantially parallel to the core. The side-holes cause an asymmetric stress across the core of the sensor creating a birefringent sensor. The sensor, preferably a Bragg grating, reflects a first and second wavelength each associated with orthogonal polarization vectors, wherein the degree of separation between the two is proportional to the pressure exerted on the core. The side-hole cane structure self-compensates and is insensitive to temperature variations when used as a pressure sensor, because temperature induces an equal shift in both the first and second wavelengths. Furthermore, the magnitude of these shifts can be monitored to deduce temperature, hence providing the side-hole cane additional temperature sensing capability that is unaffected by pressure. Additionally, the side-hole cane can be used to measure a differential pressure between a first pressure ported to the side-holes and a second external pressure.
Abstract translation: 公开了用于测量压力和/或温度的侧孔光学手杖。 侧孔拐杖具有包含传感器和包含基本上平行于芯延伸的对称侧壁的包层的导光芯。 侧孔在传感器的核心上产生不对称应力，产生双折射传感器。 传感器，优选布拉格光栅，反射与正交偏振矢量相关联的第一和第二波长，其中两者之间的分离度与施加在芯上的压力成比例。 当用作压力传感器时，侧孔手杖结构自我补偿并且对温度变化不敏感，因为温度在第一和第二波长两者中都产生相等的移动。 此外，可以监测这些位移的大小以推断温度，从而提供不受压力影响的侧孔拐角附加温度检测能力。 此外，侧孔手杖可用于测量端口与侧孔的第一压力和第二外部压力之间的差压。
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公开(公告)号：US07437028B2
公开(公告)日：2008-10-14
申请号：US10533165
申请日：2003-10-29
Applicant: Michael Hohne , Christopher Castleton , Joachim Flaig , Markus Schafer
Inventor： Michael Hohne , Christopher Castleton , Joachim Flaig , Markus Schafer
CPC classification number: G01L1/245
Abstract: A multi-layer sensor (10) and a use for the sensor (10) are described. This sensor is multi-layered in construction. 5 An optical wave guide (18) is passed through the sensor (10) such that in the event of an external application of force the force acts on the optical wave guide.
Abstract translation: 描述了多层传感器（10）和用于传感器（10）的用途。 该传感器在施工中是多层次的。 5光波导（18）穿过传感器（10），使得在外力施加的情况下，力作用在光波导上。
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公开(公告)号：US20060008197A1
公开(公告)日：2006-01-12
申请号：US10533165
申请日：2003-10-29
Applicant: Michael Hohne , Christopher Castleton , Joachim Flaig , Markus Schafer
Inventor： Michael Hohne , Christopher Castleton , Joachim Flaig , Markus Schafer
IPC: G02B6/00
CPC classification number: G01L1/245
Abstract: A multi-layer sensor (10) and a use for the sensor (10) are described. This sensor is multi-layered in construction. 5 An optical wave guide (18) is passed through the sensor (10) such that in the event of an external application of force the force acts on the optical wave guide.
Abstract translation: 描述了多层传感器（10）和用于传感器（10）的用途。 该传感器在施工中是多层次的。 5光波导（18）穿过传感器（10），使得在外力施加的情况下，力作用在光波导上。
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公开(公告)号：US06931188B2
公开(公告)日：2005-08-16
申请号：US10371910
申请日：2003-02-21
Applicant: Alan D. Kersey , John L. Maida
Inventor： Alan D. Kersey , John L. Maida
CPC classification number: G02B6/02314 , E21B47/123 , G01L1/242 , G01L1/245 , G01L1/246 , G01L11/025 , G02B6/021 , G02B6/022 , G02B6/02338 , G02B6/024 , G02B6/028 , G02B6/0281 , G02B6/262
Abstract: A side-hole optical cane for measuring pressure and/or temperature is disclosed. The side-hole cane has a light guiding core containing a sensor and a cladding containing symmetrical side-holes extending substantially parallel to the core. The side-holes cause an asymmetric stress across the core of the sensor creating a birefringent sensor. The sensor, preferably a Bragg grating, reflects a first and second wavelength each associated with orthogonal polarization vectors, wherein the degree of separation between the two is proportional to the pressure exerted on the core. The side-hole cane structure self-compensates and is insensitive to temperature variations when used as a pressure sensor, because temperature induces an equal shift in both the first and second wavelengths. Furthermore, the magnitude of these shifts can be monitored to deduce temperature, hence providing the side-hole cane additional temperature sensing capability that is unaffected by pressure. Additionally, the side-hole cane can be used to measure a differential pressure between a first pressure ported to the side-holes and a second external pressure.
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Patent Agency Ranking
公开(公告)号：US20030164755A1
公开(公告)日：2003-09-04
申请号：US10276113
申请日：2002-11-12
Inventor： Rainer Moritz , Frank-Juergen Stuetzler
IPC: B60Q001/00
CPC classification number: B60R21/0136 , G01D5/35383 , G01L1/245
Abstract: An intrusion sensor which has a first light guide arrangement (2) and a second light guide arrangement (5) for detecting the severity of an accident in a vehicle is described. An interval (8) having a width (h) is positioned between the two light guide arrangements (2, 5). In this case, the first light guide arrangement (2) is positioned in the direction of an intrusion side. The second light guide arrangement (5) is positioned in the direction of the vehicle interior side.
Abstract translation: 描述了一种入侵传感器，其具有用于检测车辆中的事故严重性的第一导光装置（2）和第二导光装置（5）。 具有宽度（h）的间隔（8）位于两个光导装置（2,5）之间。 在这种情况下，第一导光装置（2）位于侵入侧的方向。 第二导光装置（5）位于车辆内侧的方向。
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公开(公告)号：US5293039A
公开(公告)日：1994-03-08
申请号：US27358
申请日：1993-03-08
Applicant: Mireille Mongiols
Inventor： Mireille Mongiols
Abstract: The invention relates to a fiber-optic pressure detector comprising a mat having an optical fiber running therethrough along a path with no fiber-fiber crossovers, which fiber is associated with a light source and a light receiver. The light receiver receives light flux transmitted by the optical fiber from the source, thereby showing up any changes to which the flux is subjected because of deformation to the optical fiber caused by a pressure force being applied to the mat, thereby enabling said force to be detected. The optical fiber is mounted on a support sheet made of plastic, and it passes back-and-forth through the support sheet via through holes, said support sheet being sandwiched between two other sheets of greater or lesser rigidity depending on the sensitivity desired for the detector mat.
Abstract translation: 本发明涉及一种光纤压力检测器，该光纤压力检测器包括具有沿着没有纤维纤维交叉的路径穿过其中的光纤的光纤，该光纤与光源和光接收器相关联。 光接收器从光源接收由光纤传播的光束，从而显示由于施加到垫的压力而使光纤变形而使焊剂受到的任何变化，从而使得所述力为 检测到。 光纤安装在由塑料制成的支撑片上，并且通过支撑片通过通孔来回穿过所述支撑片，所述支撑片被夹在两个较大或更小刚度之间的片材上，这取决于所需的灵敏度 探测器垫。
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公开(公告)号：US5260566A
公开(公告)日：1993-11-09
申请号：US897715
申请日：1992-06-12
Applicant: Stuart E. Reed
Inventor： Stuart E. Reed
CPC classification number: G01L1/245 , G01D5/35345
Abstract: A sensor comprises an optical sensor fiber which has a microbend module engaged thereto. When the module is subjected to external influences such as pressure, displacement or the like, it places microbends in the sensor fiber which changes a light transmission characteristic of the fiber. Light passing through the sensor fiber is detected, and changes in the light are measured to find the influence on the modulator. A scintillating or florescent source fiber connected to one end of the sensor fiber is exposed to radiant energy. This produces light which is channeled to the sensor fiber as the light source for the sensor fiber.
Abstract translation: 传感器包括具有与其接合的微弯曲模块的光学传感器光纤。 当模块受到诸如压力，位移等的外部影响时，它将微弯曲放置在传感器光纤中，这改变了光纤的透光特性。 检测到通过传感器光纤的光，并测量光的变化，以发现对调制器的影响。 连接到传感器光纤的一端的闪烁或荧光源光纤暴露于辐射能。 这产生作为传感器光纤的光源引导到传感器光纤的光。
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公开(公告)号：US4990769A
公开(公告)日：1991-02-05
申请号：US410764
申请日：1989-09-21
Applicant: Jean-Pierre Hazan , Michel Steers , Gilles Delmas , Jean-Louis Nagel
Inventor： Jean-Pierre Hazan , Michel Steers , Gilles Delmas , Jean-Louis Nagel
IPC: G01L1/24 , G01L11/00 , G08B13/10 , G08B13/12 , G08B13/186
CPC classification number: G08B13/126 , G01L1/243 , G01L1/245 , G08B13/10 , G08B13/186
Abstract: A fiber-optical pressure sensor, comprising a pressure member (21, 22) which encloses the optical fiber (20) in a sandwich-like manner, and used for the detection of intruders is provided. The pressure sensor is formed by a continuous cable which can be buried and which comprises at least one optical fiber (20) which is capable of detecting, along its entire length, components of a pressure applied to a surface zone of the ground, notably by an intruder. The cable can be wound along an axis of rotation which is substantially perpendicular to its longitudinal direction and can be bent in a direction which is substantially parallel to this axis of rotation. The pressure member may have a continuous or a segmented structure. It may be formed by plates (21, 22) or strips (21, 22) which are rigid or semi-rigid. The pressure member may comprise ribs (27, 28, 29) which serve to capture forces which act in the lateral direction.
Abstract translation: 提供一种光纤压力传感器，其包括以夹心状包围光纤（20）并用于检测入侵者的压力构件（21,22）。 压力传感器由可以被埋入的连续电缆形成，并且包括至少一个光纤（20），该光纤能够沿其整个长度检测施加到地面的表面区域的压力的分量，特别是通过 入侵者 电缆可以沿着基本上垂直于其纵向方向的旋转轴线缠绕，并且可以在基本上平行于该旋转轴线的方向上弯曲。 压力构件可以具有连续或分段结构。 它可以由刚性或半刚性的板（21,22）或条（21,22）形成。 压力构件可以包括用于捕获在横向方向上作用的力的肋（27,28,29）。
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公开(公告)号：US4927232A
公开(公告)日：1990-05-22
申请号：US323498
申请日：1989-03-13
Applicant: Richard W. Griffiths
Inventor： Richard W. Griffiths
CPC classification number: G01M11/086 , G01B11/18 , G01L1/245 , G01M3/047 , G01P3/36
Abstract: An optical fiber is securely and continuously engaged by a structure such as a pipeline, offshore platform, bridge, building, dam or even a natural object or fluid medium. A light signal is passed into one end of the optical fiber. Any physical movement of the structure, or sectional movements along the optical fiber path, such as deflection, bending, displacement (changes in linear uniformity) or fracture of the structure caused, for example, by strees, strain, pressure, temperature, etc., will necessarily affect the optical fiber. As a consequence, detectable changes will occur in the "electro-optic signature" (for measurements made at the input end of the optical fiber) or in the light signal transmission (for measurements made at the opposite end of the optical fiber). A preferred optic fiber construction comprises a core and cladding contained within a protective buffer coating, wherein the buffer coating includes a particulate material for engaging the cladding in a manner altering reflective or transmission or other "electro-optic signature" characteristics of the fiber when the buffer coating is subjected to radial forces. The particulate material can be uniformly or nonuniformly distributed about the cladding to provide variable sensitivity.
Abstract translation: 光纤通过管道，海上平台，桥梁，建筑物，大坝，甚至自然物体或流体介质等结构可靠地连续地接合。 光信号被传送到光纤的一端。 结构的任何物理运动或沿着光纤路径的截面运动，例如由例如应变，压力，温度等导致的偏转，弯曲，位移（线性均匀度的变化）或结构的断裂。 ，必然会影响光纤。 因此，在“电光签名”（用于在光纤的输入端进行的测量）或光信号传输（用于在光纤的相对端进行的测量）将发生可检测的变化。 优选的光纤结构包括包含在保护性缓冲涂层内的芯和包层，其中缓冲涂层包括用于以改变光纤的反射或透射或其他“电光签名”特性的方式接合包层的颗粒材料， 缓冲涂层受到径向力。 颗粒材料可以围绕包层均匀或不均匀地分布以提供可变的灵敏度。
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