公开(公告)号：WO1994020829A1

公开(公告)日：1994-09-15

申请号：PCT/US1994002268

申请日：1994-03-02

Applicant: THE TRUSTEES OF DARTMOUTH COLLEGE

Inventor： THE TRUSTEES OF DARTMOUTH COLLEGE ,  GUPTA, Vijay

IPC: G01L01/24

CPC classification number: G01L1/241

Abstract: A system for measuring the tensile strength of a planar interface between a substrate (30) and a coating (32) which includes an energy source (20) that generates an electromagnetic beam (24) along a first axis, and a sample assembly disposed along the first axis having a first face, and a second face, where the first and second faces are oppositely opposed. The sample assembly includes a confining plate (26), an energy absorbing layer (28), a substrate (30) and a coating (32) having a free surface, all in intimate facing contact with each other, and where the sample (30) and a coating (32) having a free surface, all in intimate facing contact which each other, and where the sample (30) and the coating (32) are in intimate facing contact forms a substrate/coating interface. The coating (32) is positioned along the first axis so that the coating (32) free surface forms the sample assembly second face and the confining plate (26) forms the sample assembly first face.

Abstract translation: 一种用于测量衬底（30）和涂层（32）之间的平面界面的拉伸强度的系统，其包括沿着第一轴线产生电磁束（24）的能量源（20）和沿着第一轴线生成的样品组件 所述第一轴具有第一面和第二面，其中所述第一面和所述第二面相对地相对。 样品组件包括限制板（26），能量吸收层（28），基底（30）和具有自由表面的涂层（32），所有这些都具有彼此紧密的接触，并且其中样品（30 ）和具有彼此紧密接触的自由表面的涂层（32），并且样品（30）和涂层（32）紧密接触的接触形成基底/涂层界面。 涂层（32）沿着第一轴线定位，使得涂层（32）游离表面形成样品组件第二面，并且限制板（26）形成样品组件第一面。

公开(公告)号：WO1988005529A1

公开(公告)日：1988-07-28

申请号：PCT/DE1988000026

申请日：1988-01-20

Applicant: PFISTER GMBH ,  HÄFNER, Hans, W.

Inventor： PFISTER GMBH

IPC: G01L01/24

CPC classification number: G01L1/243 ,  G01D5/35303

Abstract: An optical sensor uses a beam waveguide (39) embedded in a force or pressure transmitting material, in particular an elastomer. To be used as force measuring sensor, the beam waveguide is mounted on an elastic deformable body and embedded in a material that does not undergo creep under the influence of a force.

Abstract translation: 光学传感器使用嵌入在力或压力传递材料中的光束波导（39），特别是弹性体。 为了用作力测量传感器，光束波导安装在弹性变形体上并嵌入到在力的作用下不经历蠕变的材料中。

公开(公告)号：WO1981000618A1

公开(公告)日：1981-03-05

申请号：PCT/US1980001060

申请日：1980-08-15

Applicant: UNITED TECHN CORP

Inventor： UNITED TECHN CORP ,  SNITZER E ,  MELTZ G

IPC: G01L01/24

CPC classification number: G01L1/243 ,  G01B11/18 ,  G01L11/025

Abstract: An optical fiber (10) having at least two cores (12 & 14) positioned in a common cladding (16) can be fabricated to be responsive to strain or hydrostatic pressure (20) but not to temperature through the selection of materials, spacing and shape of the cores and cladding in the fiber. Accordingly, the cross-talk between adjacent cores (12 & 14) in the optical wave-guide (10) can be optimized to respond to a change in hydrostatic pressure (20) or in unidirectional strain along the length of the fiber. The strain or pressure change, can be determined by measuring (22 & 24) the relative intensity of light emerging from the different cores of the fiber. A larger unambiguous range for strain or hydrostatic pressure (20) changes can be provided by a multi-core optical fiber embodiment.

公开(公告)号：WO1997039318A1

公开(公告)日：1997-10-23

申请号：PCT/US1997003852

申请日：1997-03-13

Applicant: MCDONNELL DOUGLAS ,  UNIVERSITY OF FLORIDA ,  SCHANZE, Kirk ,  MORRIS, Martin

Inventor： MCDONNELL DOUGLAS ,  UNIVERSITY OF FLORIDA

IPC: G01L01/24

CPC classification number: G01L11/02 ,  G01L1/24

Abstract: A system (50) for determining strain includes: a stimulating light source (54, 56); a device (64) for placing stress on an object (58); a number of local strain gauges (66) attached to the object (58); and an image capturing device (62, 64). A controller (52) is coupled to the stimulating light source (54, 56) and has a signal that turns on the stimulating light source (54, 56). The controller (52) receives a strain signal from each of the local strain gauges (66) located on the object (58). The controller (66) has an image signal that determines when the image capturing device (62, 64) captures an image.

Abstract translation: 用于确定应变的系统（50）包括：刺激光源（54,56）; 用于在物体（58）上施加应力的装置（64）; 附接到物体（58）上的许多局部应变计（66）; 和图像捕获装置（62,64）。 控制器（52）耦合到刺激光源（54,56），并具有接通刺激光源（54,56）的信号。 控制器（52）从位于物体（58）上的每个局部应变仪（66）接收应变信号。 控制器（66）具有确定图像拍摄装置（62,64）何时拍摄图像的图像信号。

公开(公告)号：WO1996034262A1

公开(公告)日：1996-10-31

申请号：PCT/FR1996000436

申请日：1996-03-22

Applicant: HONEYWELL ,  CARNICELLI, Vito ,  GODFROY, Dominique ,  GIERCZAK, Marek

Inventor： HONEYWELL

IPC: G01L01/24

CPC classification number: G01L1/245 ,  G08B13/10

Abstract: The device comprises a series of segments (2a, 2b, 2c) of measurement optical fibre (2) and a series of segments (3a, 3b) of strain fibre (3) extending transversaly to the longitudinal direction of the segments of measurement optical fibre; the segments of strain fibre are alternately arranged on either side of the segments of measurement optical fibre; the fibre segments of at least one series are covered with a protection member (4) providing for a relative displacement of the protection member and the coated fibre segments.

Abstract translation: 该装置包括测量光纤（2）的一系列段（2a，2b，2c）和一系列沿着测量光纤段的纵向方向延伸的应变光纤（3）的段（3a，3b） ; 应变纤维的片段交替地布置在测量光纤段的两侧; 至少一个系列的纤维段被保护构件（4）覆盖，保护构件（4）提供保护构件和涂覆的纤维段的相对位移。

公开(公告)号：WO1986005273A1

公开(公告)日：1986-09-12

申请号：PCT/FR1986000071

申请日：1986-03-05

Applicant: SOPHA PRAXIS ,  NOEL, Jacques ,  BOCQUET, Jean-Claude

Inventor： SOPHA PRAXIS

IPC: G01L01/24

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

Abstract: Optical device and method for strain detection. The device comprises at least one optical fiber (1) arranged so as to form a network (2). Light emitting means (E) arranged at one end of the fiber and receiver means (R) arranged at the other end enable to supply an information relative to the light intensity transmitted by the fiber or fibers in the presence of strain and a measurement corresponding to said strain. Application to weighing apparatus and pressure chart takings.

Abstract translation: 光学装置及应变检测方法。 该装置包括至少一个布置成形成网络（2）的光纤（1）。 布置在光纤的一端的发光装置（E）和布置在另一端的接收装置（R）能够提供关于在存在应变的情况下由纤维或纤维传输的光强度的信息，并且对应于 说应变 应用于称重设备和压力表。

公开(公告)号：WO1986000988A1

公开(公告)日：1986-02-13

申请号：PCT/SE1985000265

申请日：1985-06-27

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON ,  PERSSON, Sven, Anders, Roland

Inventor： TELEFONAKTIEBOLAGET L M ERICSSON

IPC: G01L01/24

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

Abstract: A fibre-optic cable responsible to microbending and forming part of a device for measuring pressure in accordance with the principle of creating a periodic mechanical disturbance in the fibre. The cable comprises a fibre (F) having a core (C) and a core-sheating (M). An elongated element in the form of a twisted filament (T1, T2) or a twisted band (B) extends along the fibre, and a primary shield (H) encases the fibre and the twisted element.

Abstract translation: 根据在光纤中产生周期性机械干扰的原理，负责微弯曲和形成用于测量压力的装置的一部分的光纤电缆。 电缆包括具有芯（C）和芯 - 护套（M）的光纤（F）。 呈长丝形状的细长元件（T1，T2）或扭曲带（B）沿着纤维延伸，主屏蔽（H）包住纤维和扭曲元件。

公开(公告)号：WO1998029717A1

公开(公告)日：1998-07-09

申请号：PCT/US1997023980

申请日：1997-12-19

Applicant: CiDRA CORPORATION

Inventor： CiDRA CORPORATION ,  MARON, Robert, J.

IPC: G01L01/24

CPC classification number: G01L11/025 ,  G01D5/35316 ,  G01D5/35383 ,  G01L19/0627 ,  G01L19/0645

Abstract: A sensor system for sensing a measurand field within an environment includes an optical source, such as a light emitting diode, for providing broadband light to an array of serially coupled sensor elements disposed within an optical fiber (28). Each sensor element includes a fiber grating (Bragg grating) (44) which, when illuminated, reflects a narrow band of light having a specified central wavelength. The optical fiber is deployed in a high strength hermetically sealed capillary tubing structure (5). Within the capillary tube, at least in the area of the sensor elements, the capillary tubing is filled with a high-density, low-compressibility, and high thermal conductivity material, such as a liquid (48), which completely fills all of the void spaces within the capillary tubing between the tubing and the sensor elements such that compressive forces which are exerted on the external surfaces of the tubing are accurately transmitted to the sensor elements.

Abstract translation: 用于感测环境中的被测量场的传感器系统包括诸如发光二极管的光源，用于向设置在光纤（28）内的串联耦合传感器元件的阵列提供宽带光。 每个传感器元件包括光纤光栅（Bragg grating）（44），当被照射时，该光纤光栅（44）反射具有特定中心波长的窄带光。 光纤部署在高强度气密密封的毛细管结构（5）中。 在毛细管内，至少在传感器元件的区域中，毛细管填充有高密度，低压缩性和高导热性材料，例如液体（48），其完全填充所有的 在管道和传感器元件之间的毛细管道内的空隙空间，使得施加在管道的外表面上的压缩力精确地传递到传感器元件。

公开(公告)号：WO1997043614A1

公开(公告)日：1997-11-20

申请号：PCT/US1997008653

申请日：1997-05-16

Applicant: ALLIEDSIGNAL INC.

Inventor： ALLIEDSIGNAL INC. ,  RAPOPORT, William, Ross ,  HOU, Janpu ,  PAPANESTOR, Paul, Alexander

IPC: G01L01/24

CPC classification number: G01L1/241 ,  G01L11/02

Abstract: A photoelastic force sensor comprising a sensor plate or disk bonded by means of diffusion or reactive bonding of identical or like materials onto a first face of a spacer ring which defines an aperture. The spacer ring also has an appropriate thickness and width so that other sealing requirements that induce stress into the spacer ring are not appreciably passed onto the sensor plate. A seal plate is attached to a second face of the spacer ring to form a sealed cavity which can then be evacuated or pressurized as required for the application.

Abstract translation: 一种光弹力传感器，包括通过将相同或相似材料扩散或反应地粘合到限定孔的间隔环的第一面上的传感器板或盘。 间隔环也具有适当的厚度和宽度，使得将间隙环中的应力引入的其它密封要求不会明显地传递到传感器板上。 密封板连接到间隔环的第二面上以形成密封腔，然后可以根据需要对其进行抽真空或加压。

公开(公告)号：WO1993020419A1

公开(公告)日：1993-10-14

申请号：PCT/GB1993000256

申请日：1993-02-08

Applicant: ROVER GROUP LIMITED

Inventor： ROVER GROUP LIMITED ,  STOCKLEY, Barrie, Carlton ,  BUCKBERRY, Clive, Henry

IPC: G01L01/24

CPC classification number: G01L1/241

Abstract: Polarized light from a polarizer (12) is passed through a stressed birefringent objet (14) and an analyser (16) to produce a fringe pattern representative of the stress in the object (14). The fringe pattern is observed with a CCD camera (18) and intensity information of the pattern is input to a computer (22). The process is repeated for at least two wavelengths of light and the information for the different wavelengths is combined to form a stress map of the object (14) for display on a VDU (24).