Matches 1 - 50 out of 179 1 2 3 4 >


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US20150254949 FIBER OPTIC VAULT SECURITY SYSTEM  
An enclosed security system includes a metal cage with security panel affixed thereto, forming a vault in which an item of value is enclosed. The security panels include a series of fiber optic...
US20090260834 Intervention Rod  
A rod having an embedded optical fibre has a stiff composite outer layer (10) to make the rod self straightening to enable it to be pushed into a pipe or borehole from a spool. This can help...
US20150250548 OPTIC FIBER CONNECTION FOR A FORCE SENSING INSTRUMENT  
In one embodiment, a surgical instrument includes a housing linkable with a manipulator arm of a robotic surgical system, a shaft operably coupled to the housing, a force transducer on a distal...
US20130308895 SIDE-HOLE CANE WAVEGUIDE SENSOR  
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...
US20140321799 Fiber-Grating Sensors Having Longitudinal-Strain-Inducing Jackets and Sensor Systems and Structures Including Such Sensors  
A sensor comprising an optical fiber that includes a Bragg grating and a longitudinal-strain-inducing (LSI) jacket for inducing longitudinal strain into the optical fiber as a function of a...
US20140140656 Method to utilize string-strain-change induced by a transverse force and its application in fiber Bragg grating accelerometers  
When a transverse force is applied to a stretched string that is fixed by its two ends, the string bends and the strain of the string increases to balance the transverse force. As a result, the...
US20150091875 PRESSURE SENSING TOUCH SYSTEMS AND METHODS  
Pressure-sensing touch systems and methods are disclosed for sensing the occurrence of a touch event based on pressure applied at a touch location. The touch system includes a light-source system...
US20150077740 CABLE WITH OPTICAL FIBER FOR PRESTRESSED CONCRETE  
A reinforcing cable for a prestressed concrete structure is disclosed. The cable has an optical fiber entwined between the twisted wire ropes that form the cable. The optical fiber facilitates in...
US20150260567 CABLE COMPRISING TWISTED SINUSOID FOR USE IN DISTRIBUTED SENSING  
A distributed fiber optic cable comprises an elongate body and a first optical fiber longitudinally housed in the body, wherein the fiber describes a sinusoid having an amplitude and a first...
US20120257208 FIBER OPTIC TRANSDUCERS, FIBER OPTIC ACCELEROMETERS AND FIBER OPTIC SENSING SYSTEMS  
A fiber optic transducer is provided. The fiber optic transducer includes a fixed portion configured to be secured to a body of interest, a moveable portion having a range of motion with respect...
US20100067845 INCLINOMETER SYSTEM  
Disclosed is an inclinometer system capable of detecting the inclination of the ground using a fiber bragg grating sensor to precisely measure the deformation of the ground. The inclinometer...
US20110002795 System to Measure Vibrations Using Fiber Optic Sensors  
A vibration monitoring system for an electrical submersible pump (ESP) that includes a fiber optic cable coupled with the ESP and an optical sensor coupled with the fiber optic cable. The optical...
US20130294720 SYSTEM AND METHOD FOR MAKING DISTRIBUTED MEASUREMENTS USING FIBER OPTIC CABLE  
A method for determining the physical location of a fiber optic channel in a fiber optic cable comprises the steps of a) providing at least one location key having a known physical location, b)...
US20090220190 Leak Detector Using an Optical Fibre  
A leak detection apparatus comprising an optical fibre sensor (2) arranged to detect leakage of fluid through a hose carcass (6, 8), wherein the sensor is arranged to detect the location of the...
US20100310207 OPTICAL MICROMACHINED PRESSURE SENSOR  
It is an objective of the present invention to provide a highly sensitive optical pressure sensor that uses a Mach-Zehnder Interferometer to measure pressure. The pressure sensor comprises a...
US20130094798 Monitoring Structural Shape or Deformations with Helical-Core Optical Fiber  
A method, apparatus and system for determine a parameter of a structure is disclosed. A fiber optic cable is coupled to a member. The fiber optic cable includes at least a first core helically...
US20120200536 Waveguide Configurations for Minimising Substrate Area  
The invention describes various optical waveguide layouts with reduced substrate area, with particular application to reducing bezel width in optical touch systems. In certain preferred...
US20150219476 SPLICABLE FIBER OPTIC SENSING SYSTEM, METHOD OF MAKING SAME AND TAPE FOR SENSE TRANSMISSIVELY LOCKING AN OPTICAL FIBER  
A splicable fiber optic sensing system includes, a core, a sheath surrounding the core, an adhesive disposed between the core and the sheath at some locations and not at other locations, and at...
US20120056072 WHISPERING-GALLERY-MODE-BASED SEISMOMETER  
A whispering-gallery-mode-based seismometer provides for receiving laser light into an optical fiber, operatively coupling the laser light from the optical fiber into a...
US20130330032 FIBER OPTIC SWITCH  
This disclosure is of a fiber optic switch, where an actuated plunger causes a snap-action mechanism to change rapidly from a first state to a second state and place a loaded member from a first...
US20110102766 OPTICAL FIBER SENSOR, PRESSURE SENSOR, END EFFECTOR AND STRESS DETECTING METHOD USING THE SAME  
In an FBG (Fiber Bragg Grating) sensor, a stress direction converter includes a flat portion to which stresses are applied from the exterior, and stress transmitting sections that are bridged from...
US20120111104 FIBER OPTIC CABLE FOR DISTRIBUTED ACOUSTIC SENSING WITH INCREASED ACOUSTIC SENSITIVITY  
Methods and apparatus for performing Distributed Acoustic Sensing (DAS) using fiber optics with increased acoustic sensitivity are provided. Acoustic sensing of a wellbore, pipeline, or other...
US20060072869 Optical fiber position transducer for flow control valve in smart wells  
A fiber optics position transducer is described (100) for flow control valve in smart wells, which comprises at least two load cells (10) instrumented with Bragg (FGB) network sensors and...
US20100128006 OPTICAL WAVEGUIDE AND OPTICAL TOUCH PANEL  
An optical waveguide 30 having a bending groove 34 parallel to two long sides of a rectangular shape thereof. The optical waveguide 30 is bent along the bending groove 34 so as to come into close...
US20090060413 Anti-intrusion device for fences or the like  
An anti-intrusion device for fences or the like, comprising at least one, preferably two or more cables (3), each one composed of at least one or a bundle of optical fibres (103) and of an outer...
US20090324161 FIBER OPTIC SHAPE SENSOR  
A shape sensing system to determine the position and orientation of one link with respect to another link in a kinematic chain. An optical fiber is coupled to two or more links in a kinematic...
US20080226218 Collision detection optical fiber sensor  
An optical fiber 1 includes a core 11 and a cladding material 12. In a collision detection optical fiber sensor 100, a plurality of linear members 2 and 3 are twisted around an outer periphery of...
US20120076453 Intrusion Detection System for Use on Single Mode Optical Fiber Using a Simplified Polarimeter  
A telecommunications optical fiber is secured against intrusion by detecting manipulation of the optical fiber prior to an intrusion event. This can be used in a non-locating system where the...
US20060233485 Underwater structure monitoring systems and methods  
A system for remotely detecting properties of an underwater structure in a body of water comprising a sensor connectable to the structure; a first receiver which can be positioned at or near a top...
US20110007996 Optical Fiber Pipeline Monitoring System and Method Field  
In accordance with one aspect of the present invention, a fiber surveillance system for monitoring a pipeline is provided. The surveillance system includes an optical fiber acoustically coupled to...
US20140375980 FIBER SENSING SYSTEM BASED ON A BRAGG GRATING AND OPTICAL TIME DOMAIN REFLECTOMETRY  
Optic fiber sensor characterized in that the sensing fiber is provided with a continuous Bragg grating covering the entire fiber length which is dedicated to sensing and along which spatially...
US20120321243 OPTICAL FIBER INSTRUMENT SYSTEM FOR DETECTING AND DECOUPLING TWIST EFFECTS  
An instrument system that includes an elongate body, an optical fiber, and a detector is provided. The elongate body is capable of being twisted. The optical fiber includes a first portion coupled...
US20100303403 ON-LINE FIBER BRAGG GRATING DITHERING  
An apparatus for determining a property, the apparatus including: an optical fiber having a series of fiber Bragg gratings, each fiber Bragg grating in the series being characterized by a light...
US20140050438 IMPACT SENSOR OF ACTIVE HOOD SYSTEM  
An impact sensor of an active hood system includes a rear member, optical fiber sensors, a front member and membrane switch. Each of the optical fiber sensors is disposed on upper and lower...
US20140231636 FIBER OPTIC ACOUSTIC SENSOR ARRAYS, FIBER OPTIC SENSING SYSTEMS AND METHODS OF FORMING AND OPERATING THE SAME  
A fiber optic acoustic sensing array. The fiber optic acoustic sensing array includes a core strength member and an optical fiber wound on the core strength member. The optical fiber includes a...
US20120243822 GETTING-ON/OFF DETERMINATION APPARATUS AND GETTING-ON/OFF DETERMINATION METHOD  
A getting-on/off determination apparatus determines rider's getting-on/off for an inverted two-wheel vehicle that travels while maintaining the inverted state. The getting-on/off determination...
US20080211669 COMPOSITE WELDABLE PANEL WITH EMBEDDED DEVICES  
A panel having a central panel element formed of a composite material, having peripheral edges formed of a weldable material, such as steel. In one form, the panel element is rectangular, and the...
US20100158435 SIDE-HOLE CANE WAVEGUIDE SENSOR  
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...
US20120308174 WELL-BORE SENSING  
A sensor system for use in a wellbore has a fiber-optic cable and a tool connected to the cable and moveable through the well bore. The tool in turn has an array of members arranged around a...
US20100002982 Arrangement for monitoring a stressed body and method for the production thereof  
A system serves to monitor a body exposed to high mechanical or thermal stress. The body has a surface that has at least one groove with two groove lateral walls which are oppositely disposed and...
US20150049981 FIBER OPTIC SENSING APPARATUS AND METHOD FOR SENSING PARAMETERS INVOLVING DIFFERENT PARAMETER MODALITIES  
An optical-based sensing apparatus and method are provided. A sensing apparatus (10) may include a tube (30). An optical fiber (12) may be encased in the tube. A buffering layer (14) may be...
US20140345388 DETECTING BROADSIDE ACOUSTIC SIGNALS WITH A FIBER OPTICAL DISTRUBUTED ACOUSTIC SENSING (DAS) ASSEMBLY  
A distributed fiber optic acoustic sensing system comprises an elongate body having an outer surface, an optical fiber disposed on the outer surface at a first predetermined wrap angle, and light...
US20110007997 FIBER-OPTIC TEMPERATURE SENSOR ASSEMBLY  
A fiber-optic temperature sensor assembly comprises a cap with an inner cavity. A sensor member is received in the inner cavity of the cap. The sensor member has light-transmitting properties...
US20100202727 FIBER OPTIC SHAPE SENSOR  
A shape sensing system to determine the position and orientation of one link with respect to another link in a kinematic chain. An optical fiber is coupled to two or more links in a kinematic...
US20150033868 TRANSVERSAL LOAD INSENSITIVE OPTICAL WAVEGUIDE, AND OPTICAL SENSOR COMPRISING A WAVE GUIDE  
A transversal load insensitive optical waveguide includes a primary section having a core. The waveguide may further include an outer cladding. The primary section includes a primary section...
US20130345719 Systems and Methods for Reducing Measurement Error in Optical Fiber Shape Sensors  
A shape sensing apparatus comprises an instrument including an elongated shaft with a neutral axis. The shape sensor also includes a first shape sensor with an elongated optical fiber extending...
US20110044578 Fixture for Shape-Sensing Optical Fiber in a Kinematic Chain  
Localized strain is effectively eliminated in a shape sensing optical fiber where the fiber exits a link in a kinematic chain. In one aspect, the fiber is positioned in a channel within a fiber...
US20110194807 OPTICAL SENSOR  
An optical sensor for detecting a substance includes a first waveguide and a second waveguide optically coupled via a directional coupler to the first waveguide. The sensor has a functional...
US20110133067 OPTICAL SENSOR HAVING A CAPILLARY TUBE AND AN OPTICAL FIBER IN THE CAPILLARY TUBE  
A system for use in a well includes an optical cable for positioning in the well. An optical sensor is optically coupled to the optical cable, where the optical sensor has a capillary tube and an...
US20120314988 ROTATED SINGLE OR MULTICORE OPTICAL FIBER  
An apparatus for estimating a shape, the apparatus including: an optical fiber configured to conform to the shape and having a first core offset from a centerline of the optical fiber, the first...

Matches 1 - 50 out of 179 1 2 3 4 >