164887 ⎘
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques
Sub-classes:METHODS AND APPARATUS FOR OFDR INTERROGATOR MONITORING AND OPTIMIZATION
#2Bragg Grated Fiber Optic Fluctuation Sensing and Monitoring System
#3Real-time quasi-coherent detection and fiber sensing using multi-frequency signals
#4Sensor Region of Interest Selection Based on Multisensor Data
#5Method and Apparatus for Optical Sensing
#6Method and apparatus for optical sensing
#7METHODS AND APPARATUS FOR OFDR INTERROGATOR MONITORING AND OPTIMIZATION
#8Bragg grated fiber optic fluctuation sensing and monitoring system
#9Optically powered sensing system and method for hazardous environments
#10Optical interrogator for performing interferometry using fiber Bragg gratings
#11System for measuring a plurality of physical parameters at a measurement point with a multimode optical fiber
#12Sensor region of interest selection based on multisensor data
#13Phase measurement method and signal processing device
#14Optical interrogator for performing interferometry using fiber Bragg gratings
#15Bragg grated fiber optic fluctuation sensing and monitoring system
#16Method and system for distributed fibre optic sensing
#17SYSTEM AND METHOD FOR OPTICALLY READING A SENSOR ARRAY
#18Joint wavelet denoising for distributed temperature sensing
#19Method and apparatus for optical sensing
#20Distributed fiber-optic acoustic sensing system and signal processing method using the same
#21Sensor region of interest selection based on multisensor data
#22Method and apparatus for optical sensing
#23Method and system for determining grating perturbation by modulated light
#24Apparatus for monitoring a measurand
#25Efficient transfer of sensor data on dynamic software defined network (SDN) controlled optical network
#26Frequency modulation demodulator based on fiber grating sensor array
#27Distributed optical fibre sensors
#28Distributed fibre optic sensing
#29Bending measurement apparatus, imaging apparatus, projection apparatus and projection imaging apparatus using the same, and bending measurement method comprising a wavefront measuring device
#30Guided wave-based system for cure monitoring of composites using piezoelectric discs and fiber Bragg gratings/phase-shifted Bragg gratings
#31Real-time normalization apparatus and method of phase generated carrier demodulation in sinusoidal phase modulation interferometer
#32Optical sensor system
#33Method and apparatus for optical sensing
#34Method and apparatus for optical sensing
#35Optical fiber sensor and optical fiber sensor system
#36Distributed optical fibre sensors
#37Deformation device, including an optical waveguide and method for measuring deformation of a tubular structure at multiple measuring points
#38Optical measuring system with an interrogator and a polymer-based single-mode fibre-optic sensor system
#39Optical interrogator for performing interferometry using fiber Bragg gratings
#40Photoelectric sensor
#41Flexible instrument channel insert for scope with real-time position tracking
#42Optically-secured adaptive software-defined optical sensor network architecture
#43Transmitter/receiver with orbital angular momentum based optical encryption
#44Multifiber interrogation with reflectometry techniques
#45Method and apparatus for optical sensing
#46Sensor system comprising multiplexed fiber-coupled fabry-perot sensors
#47Dual measurement displacement sensing technique
#48Two-core optical fibers for distributed fiber sensors and systems
#49Method and apparatus for optical sensing
#50Optical sensor and method of use
#51Method and apparatus for optical sensing
#52Method and apparatus for optical sensing
#53Demodulation system for 3D-matrix multi-channel fiber optic sensing
#54Energy system monitoring
#55Optical waveguide system for interrogating a plurality of sensor nodes wherein a location of the received input signal is determined
#56Time division multiplexing (TDM) and wavelength division multiplexing (WDM) sensor arrays
#57Apparatus for measuring optical signals from multiple optical fiber sensors
#58Distributed optical sensing with two-step evaluation
#59Termination of optical fiber with low backreflection
#60Multiplexed fiber-coupled fabry-perot sensors and method therefor
#61Optical sensor and method of use
#62Optical monitoring system
#63Fiber optic sensing apparatus and method for sensing parameters involving different parameter modalities
#64Time delay compensation for optical waveguides using a bidirectional wavelength scan
#65Sensor array
#66Apparatus for measuring mechanical measurands with optical sensor
#67Two-core optical fibers for distributed fiber sensors and systems
#68Structure monitoring
#69Structure monitoring
#70Gas separators with fiber optic sensors
#71Fiber optic measurement of parameters for downhole pump diffuser section
#72Distributed optical fibre sensor
#73Spectral broadening for DTS application
#74Photoelectric encoder including light-receiving element and light-blocking layer that forms light-blocking portion and light-transmitting portion on light-receiving element
#75Fiber optic measurement of parameters for downhole pump diffuser section
#76Acousto-ultrasonic sensor
#77INTERROGATION OF WAVELENGTH-SPECIFIC DEVICES
#78Multi-point pressure sensor and uses thereof
#79Sensor element and method for the production thereof and use thereof
#80Optical fibre sensor assembly
#81Optical fibre sensor assembly
#82Optical sensor and method of use
#83System and method for uniform and localized wall thickness measurement using fiber optic sensors
#84Method and apparatus for optical sensing
#85Remote sensing
#86Fiber shape sensing systems and methods
#87Optical fiber sensor, pressure sensor, end effector and sensor signal processor
#88Fiber optic interferometric sensor array with increased multiplexing density
#89Optical fiber sensor
#90High spatial resolution distributed temperature sensing system
#91Fiber sensing system with self-detection mechanism
#92Time domain multiplexing of interferometric sensors
#93Temperature sensing
#94Phase based sensing
#95Fiber optic sensing device and method for monitoring foil bearings
#96DYNAMIC POLARIZATION BASED FIBER OPTIC SENSOR
#97Raman amplification in distributed optical fiber sensing systems
#98Demodulation of phase modulated fibre-optic sensor system signals
#99Fiber Bragg grating sensor
#100Fibre optic sensor package
#101Fibre optic sensor array
#102Physical quantity measuring apparatus
#103Opto-Electronic System and Method for Detecting Perturbations
#104Communicating information
#105Methods of making and operating a fiber optic sensing device
#106Detection system
#107System for remote measurements
#108Seismic streamer array
#109GRATING ARRAY DESIGN FOR USE IN A SEISMIC SENSING SYSTEM
#110Optical sensor interrogation with wavelength grouping in time slots
#111Bi-directional interrogation of optical sensors
#112Grating design for use in a seismic sensing system
#113LAYER PEELING WITH WAVELENGTH DIVISION MULTIPLEXING
#114Connector nodes for interrogating optical fiber sensor arrays
#115Multi-core optical fiber sensor
#116Interferometric Measuring System
#117Multi-core distributed temperature sensing fiber
#118Instrumented tabular device for transporting a pressurized fluid
#119Sensor array for perimeter defense
#120Fiber bragg grating sensor interrogator and manufacture thereof
#121Fiber bragg crating sensor interrogation method
#122SENSORY FEEDBACK BED
#123Ocean bottom seismic sensing system
#124Apparatus for continuous readout of fabry-perot fiber optic sensor
#125Distributed fiber optic sensor with location capability
#126System and method for monitoring a well
#127Method for making large diameter multicore optical waveguide
#128Fiber optic interferometric sensor array
#129Method and apparatus for reducing crosstalk interference in an inline Fabry-Perot sensor array
#130Method and apparatus for providing polarization insensitive signal processing for interferometric sensors
#131Light transmission with temperature sensitive materials
#132Multi wavelength sensor array
#133Single-wire sensor/actuator network for structure health monitoring
#134Fibre-optic surveillance system
#135Multi-channel array processor
#136Fiber optic sensing device and method of making and operating the same
#137Low cost fiber-optic gage and associated multi-channel all-optical data collecting system
#138Use of distributed temperature sensors during wellbore treatments
#139Matrix time division multiplex (MTDM) interrogation
#140Optical fibre
#141Method and apparatus for reducing crosstalk interference in an inline Fabry-Perot sensor array
#142Interferometric method and apparatus for measuring physical parameters
#143Fiber optic sensor system having circulators, Bragg gratings and couplers
#144Optical fiber position transducer for flow control valve in smart wells
#145Simultaneous interrogation of multi wavelength-modulated fiber optical sensors by modulating an arrayed waveguide grating based demultiplexer
#146Novel folded Mach-Zehnder interferometers and optical sensor arrays
#147Natural fiber span reflectometer providing a virtual differential signal sensing array capability
#148Natural fiber span reflectometer providing a virtual phase signal sensing array capability
#149Distributed optical fiber sensor system
#150Multi-pulse heterodyne sub-carrier interrogation of interferometric sensors
#151Fiber grating strain sensors for civil structures
#152Method and apparatus for producing depolarized light
#153Method and apparatus for providing polarization insensitive signal processing for interferometric sensors
#154Method and apparatus for reducing crosstalk interference in an inline Fabry-Perot sensor array
#155Calculation of sensor array induced phase angle
#156Filtered calculation of sensor array induced phase angle independent from demodulation phase offset of phase generated carrier
#157Apparatus and method for elimination of polarization-induced fading in fiber-optic sensor system