ClassID:

164293

G01B11/168 - CPC Classification

Classification description:

Measuring arrangements characterised by the use of optical means for measuring the deformation in a solid, e.g. optical strain gauge by means of polarisation

Recent Application in this class:
#1
20240044638
2024-02-08

Methods and apparatus to determine a shape of an optical fiber sensor

#2
20230194244
2023-06-22

Measurement Device for Measuring Light, Measurement System and Measurement Method for Detecting Light Parameters

#3
20220404144
2022-12-22

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

#4
20220260363
2022-08-18

Methods and sensor for measuring strain

#5
20210372779
2021-12-02

Three-dimensional shape estimation of objects via polarimetry

#6
20210364276
2021-11-25

Strain distribution measurement system and strain distribution measurement method that measure strain distribution based on distribution of reflectance or polarization characteristic

#7
20210293532
2021-09-23

Scatterometry based methods and systems for measurement of strain in semiconductor structures

#8
20210156674
2021-05-27

Apparatus and method for determining refractive index, central tension, or stress profile

#9
20210131796
2021-05-06

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

#10
20210055232
2021-02-25

Evaluation method of silicon wafer

#11
20200378752
2020-12-03

DEVICES AND METHODS TO MEASURE SMALL DISPLACEMENTS

#12
20200318951
2020-10-08

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

#13
20200300615
2020-09-24

Hybrid systems and methods for characterizing stress in chemically strengthened transparent substrates

#14
20200256667
2020-08-13

Optical apparatus, optical system, and method for measuring an amount of strain of an object

#15
20200158494
2020-05-21

Displacement detection device

#16
20200141719
2020-05-07

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

#17
20200096324
2020-03-26

Polarization maintaining fiber array with increased polarization extinction ratio and method of making

#18
20190339066
2019-11-07

Apparatus and method for measuring the torsion of a test object

#19
20190331479
2019-10-31

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

#20
20190120613
2019-04-25

Method of predicting gravity-free shape of glass sheet and method of managing quality of glass sheet based on gravity-free shape

#21
20190011253
2019-01-10

Distributed measuring device and method for simultaneously measuring strain and temperature based on optical frequency domain reflection

#22
20180107108
2018-04-19

Image processing apparatus and image processing method

#23
20180024016
2018-01-25

Method for analyzing stress in an object

#24
20170370705
2017-12-28

Methods and apparatus to determine a twist parameter and/or a bend angle associated with a multi-core fiber

#25
20170075064
2017-03-16

Fiber Bragg grating interrogator assembly and method for the same

#26
20170003119
2017-01-05

Methods and apparatus to determine strain on an optical core based on tracked change in phase

#27
20160291202
2016-10-06

Synthetic test beds for fracturing optimization and methods of manufacture and use thereof

#28
20160258743
2016-09-08

Measurements of strain, stress and temperature by using 1-dimensional and 2-dimensional distributed fiber-optic sensors based on sensing by polarization maintaining fiber of distributed polarization crosstalk distribution

#29
20160252345
2016-09-01

Strain sensor and method of measuring strain amount

#30
20160238376
2016-08-18

Optical fiber sensor system having a polarization separator

#31
20160109223
2016-04-21

Distributed brillouin sensing using correlation

#32
20160109222
2016-04-21

Hybrid Raman and Brillouin scattering in few-mode fibers

#33
20160097634
2016-04-07

1-dimensional and 2-dimensional distributed fiber-optic strain and stress sensors based on polarization maintaining fiber using distributed polarization crosstalk analyzer as an interrogator

#34
20160084640
2016-03-24

Real-time non-linear optical strain gauge system

#35
20150377722
2015-12-31

Stress detection device for light-transmissive structure and stress detection method for the same

#36
20150369701
2015-12-24

Method and device for vehicle measurement

#37
20150262352
2015-09-17

Machine vision systems and methods for analysis and tracking of strain in deformable materials

#38
20150226542
2015-08-13

STRAIN INSPECTION APPARATUS

#39
20140320846
2014-10-30

OPTICAL POSITION AND/OR SHAPE SENSING

#40
20120314202
2012-12-13

Polariscope stress measurement tool and method of use

#41
20120038885
2012-02-16

Devices and methods for polarization-sensitive optical coherence tomography and adaptive optics

#42
20110228255
2011-09-22

Distributed optical fiber sensor

#43
20110109898
2011-05-12

Optical position and/or shape sensing

#44
20090310121
2009-12-17

Photoelastic coating for structural monitoring

#45
20090310120
2009-12-17

Monitoring device for detecting stress strain and method for using same

#46
20090310119
2009-12-17

Photoelastic layer with integrated polarizer

#47
20080094609
2008-04-24

Detecting strain in birefringent materials using spectral polarimetry

#48
20070058160
2007-03-15

Image inspection method by polarized compensation for deformation of lens

#49
20060110717
2006-05-25

Apparatus for enhancing visualization of mechanical stress

#50
20060081772
2006-04-20

Embeddable polarimetric fiber optic sensor and method for monitoring of structures