Material Strain Analysis Patents (Class 356/32)
  • Patent number: 10914721
    Abstract: Methods of characterizing ion-exchanged chemically strengthened Li-containing glasses include: a) measuring a mode spectrum of the glass sample; b) using the mode spectrum, estimating a first contribution to the center tension associated with a spike region and estimating a second contribution to the center tension due to a deep region only, wherein the deep region is assumed to follow a power-law stress profile; and c) determining a total center tension by adding of the first and second contributions to the center tension. The methods can be used for quality control during manufacturing of glass samples by comparing the total center tension to a center tension specification that provides optimum strength and durability.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: February 9, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Rostislav Vatchev Roussev, Vitor Marino Schneider
  • Patent number: 10856739
    Abstract: A system for monitoring parameters of an object is described. The system comprising: a monitoring unit configured for performing one or more monitoring sessions on an object and collecting data from an inspection region on the object over time and generating monitored data indicative of the inspected region, a stimulation unit configured and operable for applying at least one selected external stimulation field on the object during said one or more monitoring sessions, and a control unit configured for receiving the monitored data from the monitoring unit and determining one or more selected parameters. The stimulation unit is configured for providing said at least one selected external stimulation field directed toward said inspection region from two or more different directions.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 8, 2020
    Assignee: CONTINUSE BIOMETRICS LTD.
    Inventors: Zeev Zalevsky, Nisim Nisan Ozana
  • Patent number: 10859452
    Abstract: Disclosed is a method of measuring a surface refractive index of a strengthened glass including causing light to enter a surface layer of the strengthened glass through a liquid provided with a refractive index equivalent to that of a surface of the surface layer; a process of causing the light to be emitted from the strengthened glass through the liquid; converting two types of light components into two types of emission line sequences; capturing an image of the two types of emission line sequences; measuring positions of respective emission lines of the two types of emission line sequences from the image; and calculating refractive indexes of a surface of the strengthened glass corresponding to the two types of light components, or refractive index distributions of the strengthened glass in a depth direction from the surface corresponding to the two types of light components.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: December 8, 2020
    Assignees: ORIHARA INDUSTRIAL CO., LTD., AGC Inc.
    Inventors: Shuji Orihara, Yoshio Orihara, Satoshi Ogami
  • Patent number: 10847945
    Abstract: An FBG element is configured to apply a phase shift to at least one of an input optical signal, a first pump light, and an idler signal between stages of a phase sensitive amplifier. The FBG element is apodized using a trapezoidal apodization function over the length of the first FBG element to enable tuning of the phase shift over a range of 2? radians.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 24, 2020
    Assignee: Fujitsu Limited
    Inventors: Youichi Akasaka, Tadashi Ikeuchi
  • Patent number: 10830092
    Abstract: Rotor thrust balancing systems for turbomachines and methods of using the same are generally disclosed. For example, a rotor thrust balancing system for a turbomachine, wherein the turbomachine defines a centerline extending the length of the turbomachine. The system includes a rotating drive shaft, a thrust bearing, and a first waveguide sensor. The rotating drive shaft couples a turbine section and a compressor section of the turbomachine. The thrust bearing supports the rotating drive shaft of the turbomachine. The thrust bearing includes a plurality of ball bearings, an inner race coupled to the rotating drive shaft, and an outer race coupled to a fixed structure. The first waveguide sensor is coupled to the outer race at a first end of the waveguide sensor. The waveguide sensor communicates a vibrational frequency from the thrust bearing to a second end of the waveguide sensor.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: November 10, 2020
    Assignee: General Electric Company
    Inventors: Kyle Robert Snow, Andrew Michael Tompkins, Andrew Michael Watson, Philip Joseph Ogston, Christopher Michael Thompson
  • Patent number: 10768082
    Abstract: A true stress testing system broadly comprising a force input machine, an imaging system, and a computer. The imaging system includes a light source for projecting a light beam at the specimen in a first direction and a camera positioned on an opposite side of the specimen for receiving portions of the light beam not blocked by the specimen such that a shadow image of the specimen is created via the camera. The computer may determine a minimum dimension of the specimen perpendicular to the first direction at a point in time over a plurality of points along the force axis via the shadow image of the specimen such that the processor accounts for changes in position of the minimum dimension along the specimen. A true stress of the specimen may then be determined according to the minimum dimension of the specimen perpendicular to the first direction at the point in time.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: September 8, 2020
    Assignee: Honeywell Federal Manufacturing & Technologies, LLC
    Inventor: Edward Wenski
  • Patent number: 10697841
    Abstract: Conventional optical-transmission-type residual stress measuring apparatus cannot be used for completing the measurement of residual stress in an optical film having light reflective property, and conventional optical-reflection-type residual stress measuring apparatus is known failing to achieving the measurement of residual stress in an optical thin film having transparent or translucent property. In view of that, the present invention discloses a system for measuring residual stress in optical thin films, which is able to be utilized for achieving the residual stress measurement of respective optical thin film having transparent or translucent property and that of respective optical thin film having light reflective property.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: June 30, 2020
    Assignee: FENG CHIA UNIVERSITY
    Inventor: Chuen-Lin Tien
  • Patent number: 10663653
    Abstract: A multicore fiber for communication 10 which allows propagation of an optical signal includes: a clad 12; a core 11a which is arranged in a center of the clad 12; and seven to ten cores 11b which are arranged at equal intervals surrounding the core 11a, and the cladding diameter is 230 ?m, distances between centers of the mutually neighboring cores 11a and 11b are 30 ?m or more, distances between the centers of the cores 11b and an outer peripheral surface of the clad 12 are 35 ?m or more and a mode field diameter of light propagating in the cores 11a and 11b is 9 ?m to 13 ?m.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 26, 2020
    Assignees: FUJIKURA LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Katsuhiro Takenaga, Shoichiro Matsuo, Yusuke Sasaki, Kunimasa Saitoh
  • Patent number: 10665075
    Abstract: A system for monitoring smoke and/or temperature of an electronic device includes a fiber harness having at least one fiber optic cable terminating at a node. The node is located to measure one or more conditions at the electronic device, and a control system operably connected to the fiber harness. The control system includes a light source configured to transmit light through the fiber harness, a light sensitive device configured to receive scattered light associated with the node, and a control unit configured to analyze the scattered light to determine at least one of a presence and magnitude of the one or more conditions at the node of one or more conditions at the electronic device, wherein the control unit is further configured to transmit a signal in response to the one or more conditions, wherein the one or more conditions are one or more of smoke, fire, and temperature.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: May 26, 2020
    Assignee: KIDDE TECHNOLOGIES, INC.
    Inventors: Michael J. Birnkrant, Stefan Coreth, Kenneth Bell, Jennifer M. Alexander, Peter R. Harris, Antonio M. Vincitore
  • Patent number: 10656078
    Abstract: A metrology device includes a sound sample holder and an optical system. The sound sample holder is provided for applying sound waves to a first substrate stack surface of the substrate stack. The optical system include a source, a lens field, a beam splitter, and a detector. The source is provided for outputting electromagnetic radiation, which is split into at least one first beam path and one second beam path. The lens field is provided for applying the first beam path to a substrate stack measuring surface of the substrate stack. The beam splitter is provided for forming an interference radiation made up of the first and second beam paths of the electromagnetic radiation. The detector is provided for detecting the interference radiation.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 19, 2020
    Assignee: EV Group E. Thallner GmbH
    Inventors: Martin Eibelhuber, Markus Heilig, Boris Povazay
  • Patent number: 10495437
    Abstract: A method and apparatus are disclosed for determining a bending radius of a flexible pipe. The apparatus includes at least one bend sensor element comprising an elongate flexible substrate and at least one bend sensitive element on the substrate that has at least one electrical characteristic that is responsive to angular displacement of the substrate. The apparatus also comprises a flexible crush resistant elongate housing that supports and surrounds the bend sensor element.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: December 3, 2019
    Assignee: GE Oil & Gas UK Limited
    Inventors: John McNab, Philip Michael Nott, Geoffrey Stephen Graham, Andrew Wharton
  • Patent number: 10466419
    Abstract: An optical system and method for connecting two optical fibers is described in the present disclosure. An example optical system includes a first optical fiber embedded in an embedding material, the first optical fiber comprising side walls extending in a longitudinal direction in contact with the embedding material, a second, external, optical fiber, and a self-written waveguide in optical contact with the first and second optical fibers. Only a cross section perpendicular to the side walls of the first optical fiber is outside the embedding material, in contact with the self-written waveguide.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: November 5, 2019
    Assignees: COMS&SENS, IMEC VZW, UNIVERSITEIT GENT
    Inventors: Jeroen Missinne, Geert Van Steenberge, Geert Luyckx, Eli Voet
  • Patent number: 10405797
    Abstract: The system includes a movement sensor and a core contraction sensor in communication with a processor. The core contraction sensor is placed on the core muscles of a user and transmits core contraction signals to the processor. The processor receives movement signals from the movement sensor and identifies user movements that are qualifying movements that benefit from core contractions. The processor also monitors the timing between the qualifying movements and the core contractions to identify protected and unprotected qualifying movements. The system can also include a memory for storing core scores that are calculated from the protected and unprotected qualifying movements, exercise information and core sensor calibration information. The core contraction information can be used to calibrate the core contraction sensor. The core contraction and movement information can be transmitted to a therapist who can monitor the user's activities and provide instructional feedback.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: September 10, 2019
    Assignee: Alert Core, Inc.
    Inventor: Gregory Takeo Uehara
  • Patent number: 10378977
    Abstract: A strain amount calculation system includes an imaging unit, and a strain amount calculation device that acquires an image taken by the imaging unit, measures luminescent brightness from the acquired image, calculates an amount of strain on the object caused by a load on the object, based on a temporal change in the measured luminescent brightness, and outputs information on the calculated strain amount.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: August 13, 2019
    Assignee: TOYOTA PRODUCTION ENGINEERING
    Inventors: Takuya Sakamoto, Yuki Ishida
  • Patent number: 10358915
    Abstract: A full-duplex borehole communication system includes a single light source to generate a light signal. A downlink modulator is coupled to the light source to modulate the light signal in response to downlink data using a first protocol to generate a first modulated light signal. An uplink modulator is coupled to the downhole modulator to modulate the first modulated light signal in response to uplink data using a second protocol to generate a second modulated light signal. A downlink receiver is coupled to the downlink modulator to demodulate the first modulated signal to recover the downlink data. An uplink receiver is coupled to the uplink modulator and configured to demodulate the second modulated light signal to recover the downlink data and the uplink data. Asymmetric protocols are used between the downhole portion of the system and the uphole portion.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: July 23, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Daniel Joshua Stark, Aaron Michael Fisher
  • Patent number: 10324002
    Abstract: The disclosed technology includes, among others, methods and devices for measuring distributed fiber bend or stress related characteristics along an optical path of fiber under test (FUT) uses both a light input unit and a light output unit connected to the FUT at one single end.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 18, 2019
    Assignee: General Photonics Corporation
    Inventors: Hongxin Chen, Xiaojun Chen, Xiaotian Steve Yao
  • Patent number: 10281345
    Abstract: A strain sensor includes a marker, detectors and a calculator. The marker is disposed on a surface of a measurement object and includes a strain body and surface plasmon generating particles. In the strain body, a strain is formed by a load. The surface plasmon generating particles are arranged in two directions which are parallel to two in-plane directions of a light receiving surface of the strain body. The first detector detects a spectral intensity of a light which has been reflected on the marker or has passed through the marker. The second detector detects absorption spectral peaks corresponding to the respective array directions of the particles from the spectral intensity. The calculator calculates the quantity of the strain of the marker based on a difference in wavelength of the two absorption spectral peaks.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: May 7, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hideo Uemura, Kazuki Ikeda, Makoto Ooki
  • Patent number: 10274387
    Abstract: A pressure sensing device including a light source, at least one resonant structure, a cladding body, a first substrate and a second substrate is provided. The light source is configured to provide an original broadband light. The resonant structure includes a plurality of semiconductor rod structures arranged into a row at intervals along a single arranging direction, and each of the semiconductor rod structures has a lattice constant on the arranging direction. The original broadband light is transmitted between the semiconductor rod structures, and a resonant light is produced, wherein each of the semiconductor rod structures has a length perpendicular to the arranging direction and has a width parallel to the arranging direction, the length and the width are less than the wavelength of the resonant light. The cladding body completely covers the semiconductor rod structures of the at least one resonant structure.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 30, 2019
    Assignee: National Chiao Tung University
    Inventors: Tsan-Wen Lu, Chun Wang, Po-Tsung Lee
  • Patent number: 10209383
    Abstract: An illustrative distributed acoustic sensing system includes a multi-mode optical fiber cable for distributed sensing and a distributed acoustic sensing interrogator coupled to the multi-mode optical fiber cable via a single mode optical fiber. The interrogator derives distributed acoustic measurements from Rayleigh backscattering light that is initiated with a substantially under-filled launch configuration that is designed to excite only the lowest-order modes of the multi-mode optical fiber. Mode conversion within the multi-mode optical fiber is anticipated to be negligible. For elastic scattering (i.e., Rayleigh scattering), it is further anticipated that the scattered light will be primarily returned in the incident propagation mode, thereby escaping the extraordinarily large coupling loss that would otherwise be expected from coupling a single-mode optical fiber to a multi-mode optical fiber for distributed sensing. Experiments with graded index multi-mode optical fiber have yielded positive results.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: February 19, 2019
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: David A. Barfoot, John L. Maida
  • Patent number: 10151667
    Abstract: In the field of monitoring the aging of parts subjected to a rotary movement and, more precisely, of monitoring the deformation to which a peripheral surface of a rotating part is possibly subject, an improved method is provided. The method includes: a step of emitting a light signal at a first end of an optical fiber at least one section of which runs between two points of the surface of the part; a step of measuring a characteristic of the light signal received at a second end of the optical fiber, the characteristic varying as a function of the length of the optical fiber between its ends; and a step of comparing the characteristic of the light signal to a reference signal.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: December 11, 2018
    Assignee: OSMOS SA
    Inventor: Bernard Hodac
  • Patent number: 10082468
    Abstract: The present invention relates to a method for evaluating a SERS sensor substrate, comprising the steps of: a) measuring, through a dark-field microscope, the color of nanoparticles positioned on the SERS sensor substrate; b) converting the measured color into a distance between the nanoparticles; c) acquiring the Raman signal intensity of the SERS sensor substrate; d) acquiring the standard Raman signal intensity of a standard SERS sensor substrate including the nanoparticles having the distance that is the same as the converted distance; and e) comparing the Raman signal intensity and the standard Raman signal intensity.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 25, 2018
    Assignee: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventor: Hyuksang Kwon
  • Patent number: 10081443
    Abstract: In order to provide a simplified inspection of an aircraft for the pilot, an aircraft inspection system is provided which includes at least one movable inspection unit, a position detection arrangement, and at least one data transfer interface. The at least one moveable inspection unit is moveable relative to an aircraft to be inspected. The at least one movable inspection unit includes at least one sensor for detecting a characteristic value, for verifying a characteristic and/or for determining a defect of an aircraft. The movable inspection unit is configured to generate monitoring data. When a defect or a characteristic value is detected, the position detection arrangement detects position data of the movable inspection unit in relation to the aircraft to be inspected, and assigns the position data to the monitoring data. The data transfer interface provides the position data with the assigned monitoring data as inspection data.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: September 25, 2018
    Assignee: Airbus Defence and Space GmbH
    Inventors: Franz Engel, Daniel Bauer, Tilman Orth, Christian Weimer
  • Patent number: 9964698
    Abstract: An optical fiber cable assembly which includes an optical fiber cable which includes at least a first core and a second core positioned spaced apart from one another within a cladding material, wherein the at least first core and the second core and the cladding material extend in a direction of a length of the optical fiber cable. The assembly further includes material positioned at a predetermined location along the length of the optical fiber cable, wherein the material is associated with the optical fiber cable such that when the material is exposed to an environment change, the material transmits a force onto the optical fiber cable, changing a shape of the optical fiber cable.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 8, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Kenneth C. Noddings, Frederick L. Brinlee, Brian J. Fujimori
  • Patent number: 9857250
    Abstract: In a strain sensor and a method for installing a strain sensor according to the present invention, a first base fixes and supports one side of an optical fiber. A second base fixes and supports another side of the optical fiber. A connecting member is constituted of a separate member from the first base and the second base and is detachably mounted between the first base and the second base. Tension is applied to the optical fiber in a state in which the connecting member is mounted between the first base and the second base, and the optical fiber is fixed to and supported by the first base and the second base in a state in which tension is applied.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: January 2, 2018
    Assignee: CMIWS CO., LTD.
    Inventor: Masahito Wakahara
  • Patent number: 9759836
    Abstract: A multiple sensor fiber optic sensing system includes an optical fiber having at least first fiber optic sensors and second fiber optic sensors deployed along its length. In response to an interrogating pulse, the first fiber optic sensors generate responses in a first optical spectrum window, and the second fiber optic sensors generate responses in a second, different optical spectrum window. The responses in the first optical spectrum window are measured in a first optical spectrum channel, and the responses in the second optical spectrum window are measure in a second, different optical spectrum channel and provide simultaneous indications of one or more parameters, such as temperature and pressure, in the environment in which the sensors are deployed.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: September 12, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yuehua Chen, Colin Wilson
  • Patent number: 9737436
    Abstract: For processing eye tissue using a pulsed laser beam (L), an ophthalmological device includes a projection optical unit for the focused projection of the laser beam (L) into the eye tissue, and a scanner system upstream of the projection optical unit for the beam-deflecting scanning of the eye tissue with the laser beam (L) in a scanning movement (s?) performed over a scanning angle along a scanning line(s). The projection optical unit is tilted about an axis of rotation (q) running perpendicularly to a plane defined by the scanning line(s) and the optical axis (o) of the projection optical unit, the tilting of the projection optical unit tilting the scanning line (s) in said plane. Tilting of the scanning line(s) enables a displacement—dependent on the scanning angle—of the focus of the laser pulses projected into the eye tissue without vertical displacement of the projection optical unit.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: August 22, 2017
    Assignee: SIE AG, Surgical Instrument Engineering
    Inventors: Christian Rathjen, Hartmut Kanngiesser, Vincent Ducry, Lorenz Klauser
  • Patent number: 9733191
    Abstract: Various embodiments include apparatus and methods to operate a tool downhole in a well, where the tool has an optical computation element to determine different properties of downhole structures. Such an optical computation element can be structured to provide optical analysis of fluid and material composition of the downhole environment associated with a drilling operation. The data measurements from the optical computation element can be used in a geosteering operation. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: August 15, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael S. Bittar, Clive D. Menezes, Christopher Michael Jones
  • Patent number: 9696141
    Abstract: There is provided a system for measuring temperature and strain simultaneously utilizing Brillouin Scattering within an optical fiber. The system has a cladding, a first optical core within the cladding and a second optical core within the cladding and having a different refractive index profile and/or composition than the first core. Means to couple light into and out of said individual optical cores and/or from one optical core to the other within the fiber is provided along with means for calculating strain and temperature characteristics based on measured Brillouin frequencies for said optical cores.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: July 4, 2017
    Assignee: OZ OPTICS LTD.
    Inventors: Omur Sezerman, Lufan Zou
  • Patent number: 9689789
    Abstract: A first measured value of a specific physical quantity at a target portion is correlated with a damage evaluation index to calculate a damage degree corresponding to the first measured value. The specific physical quantity is measured at least once at a position corresponding to the first measurement position in another time period having a different usage elapsed time from that of the first measurement, and these second and subsequent measured values are correlated with damage degrees calculated based on temporal changes corresponding to the second and subsequent measurements. A new damage evaluation index is approximately calculated based on a relationship between the first, second, and subsequent measured values and the damage degrees corresponding to the first, second, and subsequent measured values.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: June 27, 2017
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Nobuyoshi Komai, Hiroaki Fukushima, Yuichi Hirakawa, Hiroyuki Ohyama, Takeshi Miyazawa, Hiroaki Yoshida
  • Patent number: 9677963
    Abstract: Small profile apparatus for pressure and/or temperature sensing within a wellbore are provided. The apparatus may include optical sensing assemblies designed for inclusion in traditional or coiled production tubing deployments and suitable for use in high pressure, high temperature environments. One example assembly generally includes a housing having a divider for separating a first volume from a second volume inside the housing, a compressible element disposed in the first volume, wherein a first end of the compressible element is coupled to the divider and a second of the compressible element is sealed, and a large diameter optical waveguide disposed in an internal volume of the compressible element. The waveguide typically includes a first portion with a first grating and a second portion with a second grating, wherein the first portion has a greater outer diameter than the second portion.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 13, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Domino Taverner, John J. Grunbeck, James Dunphy
  • Patent number: 9644948
    Abstract: The invention relates to a method for the contact-free measurement of deformations of a surface of a object in which a series of individual images is captured in each of two time windows (T1, T2), wherein between every two individual image captures the image detector is displaced relative to the object and parallel to its detector surface by an optical offset of the size of a fraction of a pixel up to a few pixels, the individual images of the first time window (T1) are processed in pairs with the individual images of the second time window (T2) to produce a set of individual deformation fields (18) and an average of the individual deformation fields (18) is calculated as an output deformation field (20).
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: May 9, 2017
    Assignee: LAVISION GMBH
    Inventor: Bernhard Wieneke
  • Patent number: 9638022
    Abstract: Borehole data presentation systems and methods that facilitate communication of volumetric logging data to a surface processing system for presentation to a driller or other user interested in visualizing the formations surrounding a borehole. The disclosed systems optionally tailor the telemetry stream to match the chosen display technique, thereby maximizing the logging system utility for the driller. Variable opacity of certain data regions or certain data discontinuities greatly facilitates data comprehension, particularly when true three-dimensional display technologies are employed. Holographic or stereoscopic display technologies may be employed to show the three-dimensional dependence of measured formation properties such as resistivity, density, and porosity. Alternatively, the radial axis can be used to represent a formation parameter value, thereby enabling cylindrical cross-plots of multiple measurements.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: May 2, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Michael S. Bittar, Martin D. Paulk, Gary Althoff, Paul F. Rodney, Frode Hveding
  • Patent number: 9568307
    Abstract: There is provided a system for measuring temperature and strain simultaneously utilizing Brillouin Scattering within an optical fiber. The system has a cladding, a first optical core within the cladding and a second optical core within the cladding and having a different refractive index profile and/or composition than the first core. Means to couple light into and out of said individual optical cores and/or from one optical core to the other within the fiber is provided along with means for calculating strain and temperature characteristics based on measured Brillouin frequencies for said optical cores.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: February 14, 2017
    Assignee: OZ Optics Ltd.
    Inventors: Omur Sezerman, Lufan Zou
  • Patent number: 9546963
    Abstract: An inspection device for painted surface with a base layer and a clear layer painted on the base layer of a vehicle includes a frame mounted to an arm of a robot, a line scan camera, a first light source lighting up at a predetermined angle is provided thereto, which is mounted to the frame, and the line scan camera which acquires first vision data through the regular reflection light from the painted surface using the light of the first light source, and a controller which receives the first vision data from the line scan camera and detects surface defect of the painted surface according to the first vision data.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: January 17, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Digital Imaging Technology, Inc.
    Inventors: Sang Ki Hwang, Jinho Seok
  • Patent number: 9513178
    Abstract: The invention is a sensor device comprising a carrier element (24), at least one light emitting element (20) arranged on the carrier element (24), at least one light detecting element (22) arranged on the carrier element (24), a cover layer (12) reflecting at least one part of the light emitted by the light emitting element (20) to the at least one light detecting element (22), and at least one transparent filler element (16, 18) filling at least partly the space between the carrier element (24) and the cover layer (12) and being made of a flexible material.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: December 6, 2016
    Assignee: Optoforce Muszaki Fejleszto Es Innovacios KFT
    Inventors: Ákos Sándor Tar, György Gábor Cserey, József Veres
  • Patent number: 9500596
    Abstract: According to the invention, these aims are achieved by means of a sensor, suitable for sensing one or more properties of one or more structures, the sensor comprising, a first optical propagation path which is configurable to cooperate with a structure whose properties are to be sensed; a second optical propagation path which is configurable to cooperate with a structure whose properties are to be sensed; a third optical propagation path; a means for amplifying a signal which propagates in the third optical propagation path, so that the signal is amplified before it begins propagation along the second optical propagation path, and a means to prevent the propagation of signals from the second optical propagation path to the third optical propagation path. There is further provided a corresponding method of sensing.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: November 22, 2016
    Assignee: OMNISENS SA
    Inventors: Julien Gosteli, Fabien Ravet, Etienne Rochat
  • Patent number: 9494417
    Abstract: A method for determining a shape correction value F for a laboratory liquid-analysis cuvette comprising a cuvette body with a circular cross-section for a photometric liquid analysis includes optically measuring an inside diameter d1 or an outside diameter d0 of the cuvette body to obtain a measured cuvette body diameter d1;d0. A shape correction value F is calculated from the measured cuvette body diameter d1;d0. The shape correction value F for the cuvette body is stored.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: November 15, 2016
    Assignee: HACH LANGE GMBH
    Inventor: Frank Stefan
  • Patent number: 9470512
    Abstract: An optical fiber strain sensor system and method are provided that use pre-formed optical structures instead of optical fibers for measuring the strain, or stress, placed on a subject object. The use of pre-formed optical structures in the optical strain gauge system eliminates many of the limitations associated with the use of optical fibers. Because the optical structures are pre-formed structures, they can be made with very tight tolerances to ensure high measurement accuracy and repeatability. The pre-formed structures can be made in low to high volume at low cost and can be made of a variety of materials to ensure that the structures are suitable for use with the material of which the subject object is made. Also, the pre-formed structures can be made very compact while achieving higher sensitivity and exhibiting less optical loss than fiber.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: October 18, 2016
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Magnus Ahlstedt, Dawid Janse Van Vuuren, Ralf Mueller
  • Patent number: 9423243
    Abstract: A strain sensor includes a light source, a marker which is disposed on a measuring object so that light from the light source is reflected by or transmitted through the marker, a detector which detects the intensity of the light from the marker, and a signal processor which calculates a strain amount based on the detected light intensity. The marker is a flat film including first and second media having different refractive indexes. The second medium is periodically arrayed in the first medium and exists simultaneously with the first medium on a plane parallel to the marker mounting surface. The maximum length of the second medium in a direction parallel to the mounting surface is shorter than the wavelength of the emitted light. The first and second media deform in response to load in a direction parallel to the mounting surface.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 23, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kazuki Ikeda, Takashi Kurosawa, Hideo Uemura
  • Patent number: 9417103
    Abstract: A multiple sensor fiber optic sensing system includes an optical fiber having at least first fiber optic sensors and second fiber optic sensors deployed along its length. In response to an interrogating pulse, the first fiber optic sensors generate responses in a first optical spectrum window, and the second fiber optic sensors generate responses in a second, different optical spectrum window. The responses in the first optical spectrum window are measured in a first optical spectrum channel, and the responses in the second optical spectrum window are measure in a second, different optical spectrum channel and provide simultaneous indications of one or more parameters, such as temperature and pressure, in the environment in which the sensors are deployed.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: August 16, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Yuehua Chen, Colin Wilson
  • Patent number: 9395306
    Abstract: In or near real-time monitoring of fluids can take place using an opticoanalytical device that is configured for monitoring the fluid. Fluids can be monitored prior to or during their introduction into a subterranean formation using the opticoanalytical devices. Produced fluids from a subterranean formation can be monitored in a like manner. The methods can comprise providing an acidizing fluid comprising a base fluid and at least one acid; introducing the acidizing fluid into a subterranean formation; allowing the acidizing fluid to perform an acidizing operation in the subterranean formation; and monitoring a characteristic of the acidizing fluid or a formation fluid using at least a first opticoanalytical device within the subterranean formation, during a flow back of the acidizing fluid produced from the subterranean formation, or both.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 19, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Robert P. Freese, Christopher M. Jones, Michael T. Pelletier, Rory D. Daussin, Robert D. Hayworth
  • Patent number: 9377412
    Abstract: An electronic device may have housing structures, electrical components, and other electronic device structures. Stress sensing structures may be formed using coatings on these electronic device structures. Stress sensing structures may have strip-shaped links that extend between pads or may be formed from blanket films. A stress sensing coating may be formed from a transparent thin film. The transparent thin film may be illuminated with monochromatic light while a video camera captures video images of resulting optical interference patterns. The video images may be captured during a test in which a device structure is exposed to stress from an impact between the device and an external object. Stress sensing coatings may also be formed from layers of material that develop cracks upon exposure to stress. Stress sensing structures may be used to evaluate stress during tests and to monitor stress during normal device use.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: June 28, 2016
    Assignee: Apple Inc.
    Inventors: Dhaval N. Shah, Joseph C. Poole
  • Patent number: 9372126
    Abstract: An apparatus for detecting deformation of an elongate body may comprise a light source configured to sequentially provide light of multiple frequencies, an optical receiver configured to receive light from the light source, and a filter disposed between the light source and the optical detector. The filter may comprise multiple segments, each of the segments configured to filter light at one of the frequencies so as to alter the amount of light incident on said optical receiver. A total amount of light detected by the optical receiver may change during the sequence so as to be indicative of deformation of the elongate body.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: June 21, 2016
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventor: Gleb V. Klimovitch
  • Patent number: 9366612
    Abstract: An apparatus for obtaining suspended particle information includes an optical array to divide light to a first path and a second path, a platform to orient a first and second container with either the first or second path, and a first and second photodetector to receive at least a direct illuminating component of the light of the first and second path after said light penetrates through the first and second container. A detector interface receives transmission signals from the first and second photodetectors of the direct illuminating component of the light after penetrating through the first and second container and a calculation engine computes the particle information based on a ratio of the received transmission signals.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: June 14, 2016
    Assignee: University of Notre Dame du Lac
    Inventors: Steven Ruggiero, Carol Tanner
  • Patent number: 9302714
    Abstract: A hybrid component supporting component for a motor vehicle includes a base component made of a metallic material, at least some parts of which are provided with a plastic material. The hybrid component includes a detection device having at least one conductor element by means of which a deformation of the hybrid component can be detected.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: April 5, 2016
    Assignee: Daimler AG
    Inventor: Oliver Kropla
  • Patent number: 9297254
    Abstract: In or near real-time monitoring of fluids can take place using an opticoanalytical device that is configured for monitoring the fluid. Fluids can be monitored prior to or during their introduction into a subterranean formation using the opticoanalytical devices. Produced fluids from a subterranean formation can be monitored in a like manner. The methods can comprise providing a treatment fluid comprising a base fluid and at least one additional component; introducing the treatment fluid into a subterranean formation; allowing the treatment fluid to perform a treatment operation in the subterranean formation; and monitoring a characteristic of the treatment fluid or a formation fluid using at least a first opticoanalytical device within the subterranean formation, during a flow back of the treatment fluid produced from the subterranean formation, or both.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: March 29, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Robert P. Freese, Christopher M. Jones, Michael T. Pelletier, Rory D. Daussin, David M. Loveless, Johanna Haggstrom
  • Patent number: 9299734
    Abstract: A method of preparing an active pixel cell on a substrate includes exerting a first stress on the substrate by forming a shallow trench isolation (STI) structure in the substrate. The method further includes testing the stressed substrate using Raman spectroscopy at a plurality of locations on the stress substrate. The method further includes depositing a stress layer having a second stress on the substrate. The stress layer covers devices of the active pixel cell that are on the substrate and the devices include a photodiode next to the STI and a transistor, and the deposition of the stress layer results in the second stress being exerted on the substrate, the second stress countering the first stress.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: March 29, 2016
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ru-Shang Hsiao, Nai-Wen Cheng, Chung-Te Lin, Chien-Hsien Tseng, Shou-Gwo Wuu
  • Patent number: 9194973
    Abstract: A method, apparatus and computer-readable medium for filtering a signal from a plurality of distributed sensors is disclosed. The signal is obtained from the plurality of distributed strain sensors. A first subspace of a measurement space of the obtained signal is selected, wherein the first subspace is characterized by a step having a selected step size. An error for a filter corresponding to the first subspace is estimated and the step size is adjusted when the estimated error meets a selected criterion. A second subspace characterized by a step having the adjusted step size is selected and the signal is filtered by applying a filter corresponding to the second subspace.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: November 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Jianfeng Chen, Xudong Yang
  • Patent number: 9188566
    Abstract: A method for and apparatus for inspecting a location on a test object with a number of obstructions to reaching the location. An elongate optical fiber carrier holding a number of optical fibers is moved to the location on the test object with the number of obstructions to reaching the location. A pattern of light is transmitted from the number of optical fibers onto a surface of the test object at the location. The pattern of the light is configured to cause sound waves in the test object when the pattern of the light encounters the surface of the test object. A response is detected to the sound waves using the number of optical fibers.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: November 17, 2015
    Assignee: THE BOEING COMPANY
    Inventors: Gary E. Georgeson, Richard H. Bossi, Clarence L. Gordon, III, Jeffrey R. Kollgaard, William P. Motzer, Alan Frank Stewart
  • Patent number: 9188761
    Abstract: An optical device includes: an optical component; a case air-sealed, and made of metal, the optical component being secured within the case; and a lens provided within the case, and positionally adjusted in consideration of a deformation of the case air-sealed, light emitted from the optical component passing through the lens or light traveling to the optical component passing through the lens.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: November 17, 2015
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Ryuichi Yoshida, Kohei Shibata, Toshiya Kishida, Hiroyuki Furukawa