164888 ⎘
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 using wavelength division multiplexing
BRAGG WAVELENGTH SPECTRAL INTERROGATION DEVICE
#2Multi-fiber sensing topology for subsea wells
#3Method and apparatus for optical sensing
#4CONTINUOUS SPATIAL SYNCHRONIZATION MONITORING DEVICE FOR OCEAN TEMPERATURE AND PRESSURE
#5METHOD AND SYSTEM FOR INTERROGATING AN OPTICAL FIBER SENSOR OF THE FIBER BRAGG GRATING TYPE, USING A TUNABLE OPTICAL BANDPASS FILTER
#6Optical sensing system with separable spectrally overlapping sensor responses
#7System and method for determining changes of an optical fibre
#8System and method for determining changes of an optical fibre
#9Interrogation of optical fiber sensor networks
#10Fiber distributed acoustic sensing system
#11High-performance distributed fiber sensing system based on EHz ultrafast pulse scanning
#12Side illuminated multi point multi parameter optical fiber sensor
#13Optical sensor system
#14System and method for determining temperature changes of an optical fibre
#15Methods and apparatus for calibration for a fiber optic shape sensor
#16Simultaneous distributed measurements on optical fiber
#17Multi-fiber optic sensing system
#18Optical deformation detection sensor and system
#19Optical deformation detection sensor and system having a material disposed on the inner surface of an elongated hollow housing
#20Monitoring transportation systems
#21Optically powered sensor calibration data storage module
#22Calibrating a distributed fibre optic sensing system
#23Measurement system and method to interrogate birefringent optical sensors with a frequency swept source based interrogator
#24Time division multiplexing (TDM) and wavelength division multiplexing (WDM) fast-sweep interrogator
#25Fibre optic distributed sensing
#26System and method for sensing many fiber sensors using time-division multiplexing and wavelength division multiplexing
#27Multiple spectrum channel, multiple sensor fiber optic monitoring system
#28Optical couplers used in a downhole splitter assembly
#29Method and system using wavelength division multiplexing for eliminating and reducing light diffusion and light reflection interference in interference path
#30Method and structure for diminishing signal interference of transmission path of optical fibre interference system
#31OFDR device and OFDR method
#32Fibre-optic sensor and use thereof
#33Pressure sensing assembly
#34Optical monitoring system
#35Processing data from a distributed fibre-optic interferometric sensor system
#36Side illuminated multi point multi parameter optical fiber sensor
#37Spring having a built-in deformation sensor
#38Fiber bragg grating interrogator assembly and method for the same
#39Time division multiplexing (TDM) and wavelength division multiplexing (WDM) fast-sweep interrogator
#40Optical couplers used in a downhole splitter assembly
#41Multiplexed fiber optic sensing system and method
#42Optical fiber grating sensor system and method comprising plural optical gratings having partially overlapping operating ranges
#43Optical fibre sensor interrogation system
#44Apparatus for measuring mechanical measurands with optical sensor
#45Frame foot loading measurement system using fiber optic sensing technique
#46Apparatus and methods utilizing optical sensors operating in the reflection mode
#47Distributed optical fibre sensor
#48Spectral broadening for DTS application
#49Multi-point measuring apparatus and method of FBG sensor having multiple delaying fibers
#50Multiple spectrum channel, multiple sensor fiber optic monitoring system
#51Sweep-free stimulated Brillouin scattering-based fiber optical sensing
#52Optical network configuration with intrinsic delay for swept-wavelength interferometry systems
#53OPTICAL SENSOR SYSTEMS AND METHODS
#54Apparatus for deriving measurement signals from fibre optic distributed sensors
#55Fibre optic distributed sensing
#56Electrical machine component monitoring system and method
#57Combined swept-carrier and swept-modulation frequency optical frequency domain reflectometry
#58Optical device
#59Side illuminated multi point multi parameter optical fiber sensor
#60Apparatus for interferometric sensing
#61Array temperature sensing method and system
#62Array temperature sensing method and system
#63Fiber optic sensors system
#64Optical wavelength interrogator
#65Optical wavelength interrogator
#66Frequency division and/or wavelength division multiplexed recursive fiber optic telemetry scheme for an optical sensor array
#67Universal access port
#68Universal access port