ClassID:

164886

G01D5/3538 - CPC Classification

Classification description:

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; Optical fibre sensor using a particular arrangement of the optical fibre itself using a particular type of fiber, e.g. fibre with several cores, PANDA fiber, fiber with an elliptic core or the like

Recent Application in this class:
#1
20250375249
2025-12-11

Malposition Detection System

#2
20250327658
2025-10-23

METHODS AND APPARATUS FOR OFDR INTERROGATOR MONITORING AND OPTIMIZATION

#3
20250305858
2025-10-02

ANNULAR SMALL-PERIOD-LONG-PERIOD FIBER GRATING SENSOR, PREPARATION METHOD AND APPLICATIONS THEREOF

#4
20250164293
2025-05-22

RADIUSED SENSORS FOR MEASURING PRESSURE AND TEMPERATURE

#5
20240426640
2024-12-26

INTEGRATED SYSTEM FOR OPTICAL FIBER SENSING AND COMMUNICATION THROUGH SHARING CO-FREQUENCY RESOURCES

#6
20240263972
2024-08-08

Real-time quasi-coherent detection and fiber sensing using multi-frequency signals

#7
20230400643
2023-12-14

Method of re-connecting optical fibers and system

#8
20230349689
2023-11-02

METHODS AND APPARATUS FOR OFDR INTERROGATOR MONITORING AND OPTIMIZATION

#9
20230248444
2023-08-10

Malposition Detection System

#10
20230204852
2023-06-29

REDUNDANT CORE IN MULTICORE OPTICAL FIBER FOR SAFETY

#11
20230106774
2023-04-06

OPTICAL WAVEGUIDE DEVICE AND OPTICAL COMMUNICATION SYSTEM INCLUDING SAME

#12
20220341763
2022-10-27

Device for optical applications

#13
20220057238
2022-02-24

Optical shape sensing system and method

#14
20220011094
2022-01-13

Methods and apparatus for OFDR interrogator monitoring and optimization

#15
20210401509
2021-12-30

Malposition detection system

#16
20210364328
2021-11-25

Composite single-mode/multimode optical fiber

#17
20210270642
2021-09-02

Multi-core optical fiber and method for manufacturing multi-core optical fiber

#18
20210223030
2021-07-22

Optical fiber sensor

#19
20210199884
2021-07-01

Redundant core in multicore optical fiber for safety

#20
20210132295
2021-05-06

Multicore fibers

#21
20210063208
2021-03-04

Multicore fiber crosstalk sensor with matched effective index

#22
20200355492
2020-11-12

Methods and apparatus for OFDR interrogator monitoring and optimization

#23
20200300614
2020-09-24

Methods and systems for optically connecting an optical fiber sensor to an optical shape sensing console

#24
20200141768
2020-05-07

Bending measurement apparatus, imaging apparatus, projection apparatus and projection imaging apparatus using the same, and bending measurement method comprising a wavefront measuring device

#25
20200116923
2020-04-16

Redundant core in multicore optical fiber for safety

#26
20200096322
2020-03-26

Methods and apparatus for OFDR interrogator monitoring and optimization

#27
20200056907
2020-02-20

Cable for distributed sensing

#28
20190294023
2019-09-26

Directional sensitive fiber optic cable wellbore system

#29
20190294022
2019-09-26

Directional sensitive fiber optic cable wellbore system

#30
20190234726
2019-08-01

Methods and apparatus for calibration for a fiber optic shape sensor

#31
20190212628
2019-07-11

Directional sensitive fiber optic cable wellbore system

#32
20190170930
2019-06-06

Method for determining the curvature and/or torsion of an optical waveguide

#33
20190094459
2019-03-28

Redundant core in multicore optical fiber for safety

#34
20190063960
2019-02-28

MEASUREMENT SYSTEM

#35
20190056249
2019-02-21

Rayleigh scattering based distributed fiber sensors with optimized scattering coefficients

#36
20190049325
2019-02-14

Optical sensor device with enhanced shock absorption

#37
20180372818
2018-12-27

Acoustic diagnostic system and method for superconducting devices operating in gas or liquid

#38
20180275339
2018-09-27

Internal cladding in sapphire optical device and method of making same

#39
20180203144
2018-07-19

Interferometric Microseismic Imaging Methods and Apparatus

#40
20180202843
2018-07-19

Distributed fiber sensors and systems employing hybridcore optical fibers

#41
20180058983
2018-03-01

System and method for optical frequency domain reflectometer

#42
20180057396
2018-03-01

Single mode optical fibers with Brillouin frequency-shift management

#43
20170343433
2017-11-30

Optic fibres and fibre optic sensing

#44
20170322372
2017-11-09

Optical fiber, method for manufacturing optical fiber, optical fiber cable, and sensor

#45
20170292862
2017-10-12

Fibre optic cable with tuned transverse sensitivity

#46
20170167899
2017-06-15

Multicore optical fiber apparatus, methods, and applications

#47
20170160109
2017-06-08

Fiber-optic sensor and method for the production and use thereof

#48
20170068045
2017-03-09

Optical fiber having a cladding layer doped with metal nano-particles, coreless optical fiber, and method for manufacturing same

#49
20160377456
2016-12-29

System and method for sensing many fiber sensors using time-division multiplexing and wavelength division multiplexing

#50
20160341891
2016-11-24

Microstructured optical fibre, composite structure, method and use for measuring shear load in a composite structure

#51
20160334203
2016-11-17

Method and equipment based on multi-core fiber Bragg grating probe for measuring structures of a micro part

#52
20160296122
2016-10-13

Multi-functional sensor assembly

#53
20160258788
2016-09-08

Distributed brillouin sensor

#54
20160238416
2016-08-18

POSITION SENSOR PRODUCTION METHOD, AND POSITION SENSOR PRODUCED BY THE METHOD

#55
20160202787
2016-07-14

INPUT DEVICE

#56
20160161326
2016-06-09

Flexible Optical Sensor Module

#57
20160047976
2016-02-18

Fibre-optic sensor and use thereof

#58
20150268117
2015-09-24

Systems and methods for distributed pressure sensing

#59
20150124266
2015-05-07

Body shape, position, and posture recognition suit with multi-core optical shape sensing fiber

#60
20150097110
2015-04-09

Light guide sensor, and method of forming light guide sensor

#61
20150069996
2015-03-12

OPTICAL FIBER FOR A SENSOR AND A POWER DEVICE MONITORING SYSTEM

#62
20140029889
2014-01-30

Sensor fiber having a multicore optical waveguide including fiber Bragg gratings

#63
20130179117
2013-07-11

Position sensor

#64
20130169445
2013-07-04

Multimode fiber interrogator

#65
20130163927
2013-06-27

Birefringent micro-structured optical fiber for sensor application

#66
20130050685
2013-02-28

COMPOSITE STRUCTURE HAVING AN EMBEDDED SENSING SYSTEM

#67
20120230641
2012-09-13

In-line optical fiber devices, optical systems, and methods

#68
20120224811
2012-09-06

BIREFRINGENT MICRO-STRUCTURED OPTICAL FIBER FOR SENSOR APPLICATION

#69
20120222487
2012-09-06

Optic fibres and fibre optic sensing

#70
20120076452
2012-03-29

Sensing device having a large diameter D-shaped optical waveguide

#71
20110311179
2011-12-22

COMPARTMENTALIZED FIBER OPTIC DISTRIBUTED SENSOR

#72
20110310378
2011-12-22

Interferometric measurement with crosstalk suppression

#73
20110135246
2011-06-09

Bend insensitive optical fiber with improved hydrogen resistance

#74
20100315621
2010-12-16

Phase modulator, phase modulator assembly, and photosensor

#75
20100150497
2010-06-17

Evanescent sensor using a hollow-core ring mode waveguide

#76
20100141930
2010-06-10

Physical quantity measuring apparatus utilizing optical frequency domain reflectometry, and method for simultaneous measurement of temperature and strain using the apparatus

#77
20100039649
2010-02-18

Optical sensor utilizing hollow-core photonic bandgap fiber with low phase thermal constant

#78
20090079961
2009-03-26

Brillouin spectral measuring method and Brillouin spectral measuring apparatus

#79
20080273852
2008-11-06

Sensing system using optical fiber suited to high temperatures

#80
20080095495
2008-04-24

Evanescent sensor using a hollow-core ring mode waveguide

#81
20080030741
2008-02-07

Optical sensor utilizing hollow-core photonic bandgap fiber with low phase thermal constant

#82
20080002187
2008-01-03

Distributed strain and temperature discrimination in polarization maintaining fiber

#83
20070237476
2007-10-11

Lithium niobate coated optical fiber apparatus and method

#84
20070230860
2007-10-04

Lithium-Niobate fiber optic sensor and system

#85
20060140529
2006-06-29

Random refractive index modulated optical fibers