公开(公告)号：US5372044A

公开(公告)日：1994-12-13

申请号：US846881

申请日：1992-03-06

Applicant: Guillaume Pierre ,  Michel Jurczyszyn ,  Andre Tardy

Inventor： Guillaume Pierre ,  Michel Jurczyszyn ,  Andre Tardy

IPC: G01D5/353 ,  G01L1/24 ,  G01N3/00

CPC classification number: G01L1/245 ,  G01D5/35354 ,  G01D5/35377

Abstract: The optical sensor includes a support (2), an optical fiber (15) and two elements (9, 10) mounted on the support (2) in such a manner as to move as a function of the variations of a quantity to be measured, such as pressure. The attenuation of an optical radiation in the optical fiber (15) deformed by reverse bending is measured. The support (2) is constructed in the form of a bending beam including two end parts (2b, 2c) bearing on two fixed abutments and a central part (2a) connected to a metal membrane (16) actuated as a function of the variations of the quantity to be measured. The optical fiber (15) is disposed between the two movable elements (9, 10) in the form of a comb, each fixed on an end part (2b, 2c) of the support. The elements (9, 10) include active surfaces coming into contact with the fiber (15) to produce a variable reverse bending of the fiber (15) in the course of their relative movement.

Abstract translation: 光学传感器包括支撑件（2），光纤（15）和安装在支撑件（2）上的两个元件（9,10），以便作为待测量量的变化的函数而移动 ，如压力。 测量通过反向弯曲而变形的光纤（15）中的光辐射的衰减。 支撑件（2）构造成弯曲梁的形式，该弯曲梁包括两个支承在两个固定支座上的端部部分（2b，2c）和连接到金属膜（16）的中心部分（2a），所述金属膜（16）作为变化 的待测量。 光纤（15）设置在梳子形式的两个可移动元件（9,10）之间，每个固定在支撑件的端部（2b，2c）上。 元件（9,10）包括与纤维（15）接触的活性表面，以在其相对运动的过程中产生纤维（15）的可变的反向弯曲。

公开(公告)号：US5193129A

公开(公告)日：1993-03-09

申请号：US766878

申请日：1991-09-27

Applicant: Dennis A. Kramer

Inventor： Dennis A. Kramer

IPC: G01L1/24 ,  G02B6/14 ,  G02B6/36

CPC classification number: G02B6/3616 ,  G01L1/245 ,  G02B6/14 ,  G02B6/3608

Abstract: A pressure detector including a fiber optical cable woven through a ladder-like structure which is then encapsulated and surrounded by a cover. Light transmitted through the fiber optic cable is diminished to a value less than a threshold value upon the occurrence of microbending caused by pressure applied at any location along the length thereof. The rungs of the ladder-like structure are sized and spaced to provide a proper locus about which microbending may be produced. In addition, the rungs may be round in cross-section and/or otherwise shaped to enhance the sensitivity of the system.

Abstract translation: 一种压力检测器，包括通过梯形结构编织的纤维光缆，然后将其封装并被盖子包围。 在通过沿其长度的任何位置施加的压力引起的微弯发生时，透过光纤电缆的光减小到小于阈值的值。 梯形结构的梯级的尺寸和间隔尺寸以提供可产生微弯的适当的轨迹。 此外，梯级可以是圆形的横截面和/或其他形状以增强系统的灵敏度。

公开(公告)号：US5138152A

公开(公告)日：1992-08-11

申请号：US586767

申请日：1990-09-21

Applicant: Colin Botting

Inventor： Colin Botting

IPC: G01D5/353 ,  G01L1/24 ,  G08B13/186 ,  H04J3/16

CPC classification number: G01L1/245 ,  G01D5/35377 ,  G08B13/186 ,  H04J3/1676

Abstract: In a fibre optic sensor control system using an optical fibre (14) responsive to an applied external pressure P and through which a series of pulses are transmitted, a detector (20, 22) is responsive to the pulse-width of the received pulses rather than merely their amplitude. This results in less susceptibility to interference and also makes the system less sensitive to changes in the transfer characteristics of the electro-optical convertor (12) and/or of the opto-electrical convertor (20) and/or the maximum transmittance of the optical fibre.

公开(公告)号：US5067815A

公开(公告)日：1991-11-26

申请号：US581962

申请日：1990-09-13

Applicant: Georges Kotrotsios ,  Olivier Parriaux

Inventor： Georges Kotrotsios ,  Olivier Parriaux

IPC: G01B11/00 ,  G01D5/353 ,  G01J1/02 ,  G01J5/08 ,  G01L1/24

CPC classification number: G01L1/245 ,  G01D5/266 ,  G01D5/268

Abstract: An optical sensor with intermodal interferometry, using a bimodal optical fiber propagating a first mode and giving rise to a second mode coupled to the first in response to a disturbance cause by a physical or chemical quantity of which it is wished to determine the position along the optical fiber by compensating the difference in the delay time between modes at the input of the interferometer.

Abstract translation: 一种具有多模式干涉测量的光学传感器，使用传播第一模式的双模光纤并且产生耦合到第一模式的第二模式，以响应于由物理或化学量引起的干扰，所述物理或化学量希望确定沿着 通过补偿干涉仪输入端的模式之间的延迟时间差异来实现光纤。

公开(公告)号：US4781056A

公开(公告)日：1988-11-01

申请号：US934614

申请日：1986-11-07

Applicant: Jacques Noel ,  Jean-Claude Bocquet

Inventor： Jacques Noel ,  Jean-Claude Bocquet

IPC: G01L5/00 ,  G01L1/24 ,  G01G3/12 ,  G01G9/00 ,  G01L25/00

CPC classification number: G01L1/245 ,  G01L1/243 ,  Y10S177/06

Abstract: An optical device and method for strain detection. The device is provided with at least one optical fiber arranged so as to form a network. A light emitting device is arranged at one end of the fiber and a receiver is arranged at the other end, enabling the generation of information relative to the light intensity transmitted by the fiber or fibers in the presence of strain, and a measurement corresponding to the strain.

Abstract translation: PCT No.PCT / FR86 / 00071 Sec。 371日期：1986年11月7日 102（e）日期1986年11月7日PCT公布1986年3月5日PCT公布。 公开号WO86 / 05273 日期：1986年9月12日。用于应变检测的光学装置和方法。 设备设置有至少一个布置成形成网络的光纤。 发光器件布置在光纤的一端并且另一端布置有接收器，使得能够在存在应变的情况下相对于由光纤或光纤传输的光强产生信息，并且对应于 应变。

公开(公告)号：US4678903A

公开(公告)日：1987-07-07

申请号：US822340

申请日：1986-01-27

Applicant: Marek T. Wlodarczyk ,  Mark K. Krage ,  Michael J. O'Rourke

Inventor： Marek T. Wlodarczyk ,  Mark K. Krage ,  Michael J. O'Rourke

IPC: G01D5/353 ,  G01L1/24 ,  G01L11/02

CPC classification number: G01L1/245 ,  G01D5/35345 ,  G01D5/35377 ,  G01L11/025

Abstract: A self aligning microbend sensor comprises a tubular housing having internal threads, an expandable insert with external threads loosely threaded into the housing with sufficient tolerance to allow expansion of the insert in response to a parameter being measured while maintaining registration of the threads, and a fiber optic element between the housing and the insert and extending transverse to the threads, such that upon expansion of the insert the fiber optic element experiences microbending due to deformation by the threads.

Abstract translation: 自对准微弯传感器包括具有内螺纹的管状壳体，具有宽松螺纹连接到壳体中的外螺纹的可扩展插入件，其具有足够的公差，以允许响应于测量参数而延伸插入件，同时保持螺纹的配准，以及纤维 光学元件在壳体和插入件之间并且横向于螺纹延伸，使得当插入件膨胀时，光纤元件由于线的变形而经历微弯曲。

公开(公告)号：US4488040A

公开(公告)日：1984-12-11

申请号：US442984

申请日：1982-11-19

Applicant: Donald H. Rowe

Inventor： Donald H. Rowe

IPC: G01L1/24 ,  G08B13/12 ,  G02B5/14 ,  G02B5/172

CPC classification number: G08B13/126 ,  G01L1/245

Abstract: A fiber optic sensor useful, for example, in intrusion detection systems for sensing seismic or pressure disturbances produced by an intruder, comprises a cable having an optical fiber core for transmitting the output of a laser, a hard preferably electrically nonconductive strand wound helically on and coextensive with the fiber, and a compliant tubular sleeve over the fiber and strand. The coils of the strand are axially spaced apart and circumferentially engage the fiber. The sleeve fits snugly over the strand and fiber and transmits through the strand coils to the fiber forces resulting from disturbances to be detected, subjecting the fiber to bending stresses. With cable connected at one end to the laser output, the polarization of light transmitted by the fiber is changed by the induced stresses and is detected at the other end of the cable to indicate the occurrence of the disturbance.

Abstract translation: 用于例如用于感测由入侵者产生的地震或压力干扰的入侵检测系统的光纤传感器包括具有用于传输激光输出的光纤芯线的电缆，用于将激光器输出的硬的优选非导电的线， 与纤维共同延伸，以及在纤维和股线上的柔顺管状套管。 绞线的线圈沿轴向间隔开并与纤维周向啮合。 套筒紧贴在股线和纤维上，并通过股线圈传递到由待检测的干扰引起的纤维力，使纤维受到弯曲应力。 当电缆一端连接到激光输出端时，由光纤传输的光的偏振度由感应应力而变化，并在电缆的另一端检测到指示干扰的发生。

公开(公告)号：WO2016053398A1

公开(公告)日：2016-04-07

申请号：PCT/US2015/035721

申请日：2015-06-14

Applicant: DARMA INC.

Inventor： HU, Junhao

IPC: A47C31/12

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: Systems and methods of monitoring posture and vital signs are disclosed. In some embodiments, the system includes a cushion on which a user can sit. The cushion includes a first optical fiber sensor, a second sensor, and a first computing device. The system may further include a second computing device communicatively coupled to the first computing device and configured to receive sensor data from the first computing device. One or both of the first and second computing devices may operate to combine a signal indicative of the movement of the user with a signal indicative of the direction of movement of the user to determine a posture of the user. The system may provide feedback based on the user's posture and recommend actions to improve posture. The system may further monitor the user's heart rate, respiration rate, or other vital signs.

Abstract translation: 公开了监测姿势和生命体征的系统和方法。 在一些实施例中，系统包括用户可以坐在其上的坐垫。 该衬垫包括第一光纤传感器，第二传感器和第一计算设备。 系统还可以包括通信地耦合到第一计算设备并被配置为从第一计算设备接收传感器数据的第二计算设备。 第一和第二计算设备中的一个或两个可以操作以组合指示用户的移动的信号与指示用户的移动方向的信号以确定用户的姿势。 该系统可以基于用户的姿势提供反馈并推荐改善姿势的动作。 该系统可以进一步监测用户的心率，呼吸速率或其他生命体征。

公开(公告)号：WO2004040250A1

公开(公告)日：2004-05-13

申请号：PCT/EP2003/012020

申请日：2003-10-29

Applicant: DECOMA (GERMANY) GMBH ,  FLAIG, Joachim ,  SCHÄFER, Markus ,  HÖHNE, Michael ,  CASTLETON, Christopher

Inventor： FLAIG, Joachim ,  SCHÄFER, Markus ,  HÖHNE, Michael ,  CASTLETON, Christopher

IPC: G01L1/24

CPC classification number: G01L1/245

Abstract: Es werden ein mehrschichtiger Sensor (10) und eine Verwendung des vorgestellten Sensors (10) beschrieben. Dieser Sensor ist mehrschichtig ausgebildet. Durch den Sensor (10) ist ein Lichtwellenleiter (18) derart geführt, dass im Falle einer äusseren Krafteinwirkung these auf den Lichtwellenleiter einwirkt.

Abstract translation: 多层传感器（10）和一个使用所提出的传感器（10）的描述。 该传感器形成多层的。 由传感器（10）是被引导的光波导（18），使得在外力作用在光波导合成的情况下。

公开(公告)号：WO1997015805A1

公开(公告)日：1997-05-01

申请号：PCT/GB1996002606

申请日：1996-10-24

Applicant: BICC PUBLIC LIMITED COMPANY ,  HAIGH, Neil, Richard ,  ROWLAND, Simon, Mark ,  LINTON, Richard, Stephen

Inventor： BICC PUBLIC LIMITED COMPANY

IPC: G01B11/16

CPC classification number: G01L1/246 ,  G01B11/18 ,  G01L1/243 ,  G01L1/245

Abstract: An optical fibre strain gauge (1) for an engineering structure e.g. a bridge, building, pipe, plant or the like, comprises: (a) a plurality of supports (8, 10) for the optical fibre that can be located on a surface of the structure and are spaced apart from one another over a part of the surface; and (b) at least one optical fibre (12) that is looped around the supports so that it extends between the supports, the optical fibre being fixed to the supports so that the length of the part of the fibre extending between the supports will vary in accordance with strain of the surface of the structure. The optical fibre(s) (12) can be looped around the supports (8, 10) a number of times, which enables the fibre(s) to be held more easily, and enables the strain gauge to incorporate a length of fibre significantly greater than the dimension of the area of the structure that is being monitored. The fibre(s) will normally contain reflectors such as Bragg gratings to enable signals to be monitored.

Abstract translation: 一种用于工程结构的光纤应变计（1），例如 桥梁，建筑物，管道，植物等，包括：（a）用于光纤的多个支撑件（8,10），其可以位于所述结构的表面上并且彼此间隔开一部分 的表面; 和（b）围绕所述支撑件环绕的至少一个光纤（12），使得其在所述支撑件之间延伸，所述光纤被固定到所述支撑件，使得在所述支撑件之间延伸的所述纤维的所述部分的长度将变化 根据结构的表面应变。 光纤（12）可以围绕支撑件（8,10）环绕多次，这使得能够更容易地保持纤维，并且使应变计能够显着地结合一定长度的纤维 大于被监测结构区域的尺寸。 光纤通常将包含诸如布拉格光栅之类的反射器，以使信号得以监控。