164871 ⎘
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 an interferometer arrangement using interferometer with two arms in reflection, e.g. Mickelson interferometer
Method and Apparatus for Optical Sensing
#2Method and apparatus for optical sensing
#3Simultaneous distributed acoustic sensing with multiple gauge lengths
#4Grating enhanced distributed vibration demodulation system and method based on three-pulse shearing interference
#5Multi-dimensional spatial positioning system and method for disturbance source
#6Method and apparatus for optical sensing
#7Optical fiber detection device for detecting discharge fault of high-voltage bushing
#8Optical fiber sensing
#9High-performance distributed fiber sensing system based on EHz ultrafast pulse scanning
#10System for interrogating an interferometer, an interferometric system and a method for interrogating an interferometer
#11Method and apparatus for optical sensing
#12Optical fiber-based sensor system having dual optical fibers providing measurements of a first and a second phase difference
#13Fiber acoustic emission sensing apparatus and method for service behavior of hydraulic concrete structure
#14Fiber Bragg Grating demodulation device capable of supressing fluctuations at variable ambient temperature and demodulation method thereof
#15Method and apparatus for optical sensing
#16Multiplexed fiber sensor
#17Method and apparatus for optical sensing
#18Optical sensor and method of use
#19Method and apparatus for optical sensing
#20Method and apparatus for optical sensing
#21Optical sensor and method of use
#22Distributed disturbance sensing device and the related demodulation method based on polarization sensitive optical frequency domain reflectometry
#23Fiber-optic disturbance detection using combined Michelson and Mach-Zehnder interferometers
#24Optical sensor and method of use
#25Method and apparatus for optical sensing
#26Demodulation method and apparatus for fiber optic sensors
#27Frequency division and/or wavelength division multiplexed recursive fiber optic telemetry scheme for an optical sensor array