164848 ⎘
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 using polarisation
Sub-classes:METHOD FOR ITERATIVELY CREATING A MATRIX FROM BASE ELEMENTS
#2DISTRIBUTED SENSING SYSTEM PROVIDING COHERENT DETECTION
#3Compressed sensing-based Brillouin Frequency Domain Distributed Optical Fiber Sensor Device
#4Position encoder with fusion of different sensor types
#5Lower display sensor
#6System and method for fiber sensing
#7Five-degree-of-freedom heterodyne grating interferometry system
#8Method and system for contactless detection of rotational movement
#9Fiber distributed acoustic sensing system
#10Optical position-measuring device
#11Displacement detection device
#12Polarization tracking device, optical receiving device, and polarization tracking method
#13Optical fiber sensor and optical fiber sensor system
#14Optical position-measuring device
#15FIBER OPTIC POLARIZATION MODULATED EVENT MONITOR
#16Relative position detection means and displacement detection device
#17Optical fiber sensor device and vibration position specifying method
#18Segmented poled optical fiber for fiber optic sensor and phased array
#19Dissimilar cores in multicore optical fiber for strain and temperature separation
#20Sagnac-ring fiber-optic interferometric system with Rayleigh length spaced polarizer
#21Optical measurement system, measurement method for errors of rotating platform, and two dimensional sine wave annulus grating
#22Optical encoder unit, and optical encoder
#23Tilt detecting device and rotary laser apparatus
#24Measurement scale with periodic nanostructure
#25Alignment measurement system, lithographic apparatus, and a method to determine alignment of in a lithographic apparatus
#26Bed monitoring device
#27Device for measuring the rotating angle of two objects rotating around an axis in relation to each other
#28Method and apparatus for measuring fiber twist by polarization tracking
#29Alignment measurement system, lithographic apparatus, and a method to determine alignment in a lithographic apparatus
#30Phase modulator, phase modulator assembly, and photosensor
#31Compact laser sensors and monitoring systems including such sensors
#32Downhole sensors using manufactured anisotropic permittivity
#33Method and apparatus for measuring fiber twist by polarization tracking
#34NEAR INFRARED SENSOR SYSTEM WITH NANO-IMPRINTED WIRE-GRID POLARIZERS AND METHOD
#35Optical sensors for downhole measurements using birefringent materials
#36Laser sensor apparatus and method for detecting transmission shaft torque
#37System and method for measuring forces
#38Interference measuring apparatus for detecting a plurality of stable phase difference signals
#39Fiber optic strain sensor and associated data acquisition system
#40High-resolution fiber laser sensor
#41Method and apparatus for optically measuring absolute displacement
#42Rotation and/or tilt angle detection means for a ball and socket joint
#43Non-contact optical polarization angle encoder
#44Birefringence deformation sensing apparatus having a controller to instruct the function of a transmitter and a receiver
#45Apparatus and method for elimination of polarization-induced fading in fiber-optic sensor system