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Class Information
Number: 356/35.5
Name: Optics: measuring and testing > Material strain analysis > By light interference detector (e.g., interferometer)
Description: Subject matter including means responsive to an interference pattern produced by the interaction of coherent light waves with the stressed article or material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7599047 |
Method and system for simultaneous measurement of strain and temperature |
Oct. 6, 2009 |
| 7583368 |
Method of enhancing measurement of stress in glass |
Sep. 1, 2009 |
| 7583390 |
Accelerometer comprising an optically resonant cavity |
Sep. 1, 2009 |
| 7576840 |
Brillouin spectral measuring method and Brillouin spectral measuring apparatus |
Aug. 18, 2009 |
| 7576347 |
Method and apparatus for optically inspecting an object using a light source |
Aug. 18, 2009 |
| 7564540 |
Fibre optic sensor method and apparatus |
Jul. 21, 2009 |
| 7564559 |
MEMS-based, phase-shifting interferometer |
Jul. 21, 2009 |
| 7554674 |
Optical displacement sensor |
Jun. 30, 2009 |
| 7548319 |
Interferometric method and apparatus for measuring physical parameters |
Jun. 16, 2009 |
| 7542146 |
High intensity fabry-perot sensor |
Jun. 2, 2009 |
| 7538883 |
Distributed strain and temperature discrimination in polarization maintaining fiber |
May. 26, 2009 |
| 7538859 |
Methods and systems for monitoring and obtaining information of at least one portion of a sample using conformal laser therapy procedures, and providing electromagnetic radiation thereto |
May. 26, 2009 |
| 7538860 |
System and method for determination of the reflection wavelength of multiple low-reflectivity bragg gratings in a sensing optical fiber |
May. 26, 2009 |
| 7538891 |
Surface characterization based on lateral shearing of diffracted wave fronts to measure in-plane and out-of-plane displacement gradient fields |
May. 26, 2009 |
| 7499151 |
Distributed Brillouin sensor system based on DFB lasers using offset locking |
Mar. 3, 2009 |
| 7495775 |
Optical displacement sensor comprising a wavelength-tunable optical source |
Feb. 24, 2009 |
| 7487685 |
Strain measurement method and device |
Feb. 10, 2009 |
| 7477362 |
Moire interferometric strain sensor |
Jan. 13, 2009 |
| 7456973 |
Method and device for the contour and/or deformation measurement, particularly the interference measurement, of an object |
Nov. 25, 2008 |
| 7433051 |
Determination of lithography misalignment based on curvature and stress mapping data of substrates |
Oct. 7, 2008 |
| 7423762 |
Rugged fabry-perot pressure sensor |
Sep. 9, 2008 |
| 7403270 |
Method for whole field thin film stress evaluation |
Jul. 22, 2008 |
| 7377181 |
In-situ large area optical strain measurement using an encoded dot pattern |
May. 27, 2008 |
| 7359067 |
Optical displacement sensor comprising a wavelength-tunable optical source |
Apr. 15, 2008 |
| 7357570 |
Method and device for contactless temperature monitoring and temperature adjustment |
Apr. 15, 2008 |
| 7355718 |
Pressure sensor having two materials with different coefficients of thermal expansion configured to reduce temperature dependence |
Apr. 8, 2008 |
| 7355684 |
Interferometric signal conditioner for measurement of the absolute length of gaps in a fiber optic Fabry-Perot interferometer |
Apr. 8, 2008 |
| 7355723 |
Apparatus comprising a high-signal-to-noise displacement sensor and method therefore |
Apr. 8, 2008 |
| 7283216 |
Distributed fiber sensor based on spontaneous brilluoin scattering |
Oct. 16, 2007 |
| 7280187 |
Method for resolving phase in electronic speckle interferometry |
Oct. 9, 2007 |
| 7268860 |
Color Moire interferometry |
Sep. 11, 2007 |
| 7251038 |
Light source stabilisation |
Jul. 31, 2007 |
| 7245385 |
Characterizing unsteady pressures in pipes using optical measurement devices |
Jul. 17, 2007 |
| 7164481 |
Coefficient of linear expansion measuring apparatus and coefficient of linear expansion measuring method |
Jan. 16, 2007 |
| 7115885 |
Method and device for multi photon excitation of a sample |
Oct. 3, 2006 |
| 7068872 |
Signal processing for passive interferometry |
Jun. 27, 2006 |
| 7030971 |
Natural fiber span reflectometer providing a virtual signal sensing array capability |
Apr. 18, 2006 |
| 6943870 |
Deformation measuring method and apparatus using electronic speckle pattern interferometry |
Sep. 13, 2005 |
| 6924888 |
Process and apparatus for recording the deformation of objects |
Aug. 2, 2005 |
| 6850315 |
Intensity-based optical waveguide sensor |
Feb. 1, 2005 |
| 6843107 |
System and process for detecting leaks in sealed articles |
Jan. 18, 2005 |
| 6809803 |
Surface topology inspection |
Oct. 26, 2004 |
| 6791695 |
Shearographic imaging machine with archive memory for animation data and air handling system |
Sep. 14, 2004 |
| 6785004 |
Method and apparatus for interrogating fiber optic sensors |
Aug. 31, 2004 |
| 6765677 |
Method and device for non-destructive real-time measurements of residual stresses in planar and non-planar objects |
Jul. 20, 2004 |
| 6744517 |
Combining interference fringe patterns to a moire fringe pattern |
Jun. 1, 2004 |
| 6717681 |
Portable real-time high-resolution digital phase-stepping shearography with integrated excitation mechanisms |
Apr. 6, 2004 |
| 6687011 |
Transmission-type extrinsic fabry-perot interferometric optical fiber sensor |
Feb. 3, 2004 |
| 6678055 |
Method and apparatus for measuring stress in semiconductor wafers |
Jan. 13, 2004 |
| 6674531 |
Method and apparatus for testing objects |
Jan. 6, 2004 |
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