DE2819590A1 - Vorrichtung zur messung der in einem festen koerper vorliegenden spannung - Google Patents
Vorrichtung zur messung der in einem festen koerper vorliegenden spannungInfo
- Publication number
- DE2819590A1 DE2819590A1 DE19782819590 DE2819590A DE2819590A1 DE 2819590 A1 DE2819590 A1 DE 2819590A1 DE 19782819590 DE19782819590 DE 19782819590 DE 2819590 A DE2819590 A DE 2819590A DE 2819590 A1 DE2819590 A1 DE 2819590A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- light guide
- medium
- refractive index
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007787 solid Substances 0.000 title claims description 6
- 239000000758 substrate Substances 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- WUBBRNOQWQTFEX-UHFFFAOYSA-N 4-aminosalicylic acid Chemical compound NC1=CC=C(C(O)=O)C(O)=C1 WUBBRNOQWQTFEX-UHFFFAOYSA-N 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 22
- 230000003287 optical effect Effects 0.000 description 12
- 239000003365 glass fiber Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000033695 Sige Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920005553 polystyrene-acrylate Polymers 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
- G01L1/243—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using means for applying force perpendicular to the fibre axis
- G01L1/245—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using means for applying force perpendicular to the fibre axis using microbending
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Integrated Circuits (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Optical Transform (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB31643/77A GB1584173A (en) | 1977-07-27 | 1977-07-27 | Apparatus for measuring strain in a solid object |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2819590A1 true DE2819590A1 (de) | 1979-02-08 |
DE2819590C2 DE2819590C2 (US20110009641A1-20110113-C00185.png) | 1987-02-19 |
Family
ID=10326244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782819590 Granted DE2819590A1 (de) | 1977-07-27 | 1978-05-05 | Vorrichtung zur messung der in einem festen koerper vorliegenden spannung |
Country Status (4)
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1979000377A1 (en) * | 1977-12-12 | 1979-06-28 | T Litovitz | Optical sensing apparatus and method |
FR2480433A1 (fr) * | 1980-04-11 | 1981-10-16 | Fort Francois | Capteur par detection de pression |
EP0038401A1 (de) * | 1980-04-22 | 1981-10-28 | Philips Kommunikations Industrie AG | Verfahren zur Überwachung von physikalischen Grössen von Bauteilen |
EP0086231A1 (en) * | 1981-08-27 | 1983-08-24 | Trw Inc. | Microbending of optical fibers for remote force measurement |
DE3441792C1 (de) * | 1984-11-15 | 1985-11-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Faseroptischer Kraftsensor, insbesondere Drucksensor |
DE4132113A1 (de) * | 1991-09-26 | 1993-04-01 | Siemens Ag | Messaufnehmer fuer laengen- oder abstandsaenderungen |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2816682A1 (de) * | 1978-04-18 | 1979-12-20 | Max Planck Gesellschaft | Anordnung zur erfassung des einflusses physikalischer groessen auf die laenge eines weges |
US4191470A (en) * | 1978-09-18 | 1980-03-04 | Honeywell Inc. | Laser-fiber optic interferometric strain gauge |
JPS5714705A (en) * | 1980-06-30 | 1982-01-26 | Matsushita Electric Works Ltd | Detector for displacement |
JPS57190238A (en) * | 1981-05-19 | 1982-11-22 | Toshiba Corp | Photo load detector |
US4477725A (en) * | 1981-08-27 | 1984-10-16 | Trw Inc. | Microbending of optical fibers for remote force measurement |
US4513200A (en) * | 1983-01-24 | 1985-04-23 | Occidental Research Corporation | Fiber optic movement measuring sensor |
GB8322486D0 (en) * | 1983-08-20 | 1983-09-21 | Nmi Ltd | Crack monitors |
US4594504A (en) * | 1983-09-08 | 1986-06-10 | Rosemount Inc. | Light modulation sensor in a vortex shedding flowmeter |
GB2159942A (en) * | 1984-06-09 | 1985-12-11 | Michael Roderick Oliver | Fluid valve position sensor |
US4636638A (en) * | 1984-10-12 | 1987-01-13 | The United States Of America As Represented By The Secretary Of The Navy | Remote optical crack sensing system including fiberoptics |
FR2578645B1 (fr) * | 1985-03-07 | 1987-03-20 | Sopha Praxis | Dispositif optique de detection d'effort, procede de mesure d'effort au moyen dudit dispositif et leur application a une balance |
JPS61221629A (ja) * | 1985-03-15 | 1986-10-02 | Sharp Corp | 感圧素子の製造方法 |
US4724316A (en) * | 1985-07-12 | 1988-02-09 | Eldec Corporation | Temperature independent fiber optic sensor |
US4671659A (en) * | 1985-11-08 | 1987-06-09 | Martin Marietta Corporation | Fiber optic displacement sensor |
CA1268640A (en) * | 1985-11-14 | 1990-05-08 | Battelle Development Corporation | Fiber-optical pressure detector |
US4678903A (en) * | 1986-01-27 | 1987-07-07 | General Motors Corporation | Self aligning fiber optic microbend sensor |
US4692610A (en) * | 1986-01-30 | 1987-09-08 | Grumman Aerospace Corporation | Fiber optic aircraft load relief control system |
US4734577A (en) * | 1986-01-30 | 1988-03-29 | Grumman Aerospace Corporation | Continuous strain measurement along a span |
US4788868A (en) * | 1986-03-27 | 1988-12-06 | The Charles Stark Draper Laboratory, Inc. | Strain measurement apparatus and method |
CH671077A5 (US20110009641A1-20110113-C00185.png) * | 1986-04-28 | 1989-07-31 | Bruderer Ag | |
CH672173A5 (US20110009641A1-20110113-C00185.png) * | 1986-04-28 | 1989-10-31 | Bruderer Ag | |
US4751690A (en) * | 1986-05-12 | 1988-06-14 | Gould Inc. | Fiber optic interferometric hydrophone |
US5020379A (en) * | 1986-10-30 | 1991-06-04 | The Babcock & Wilcox Company | Microbend fiber optic strain gauge |
US4947693A (en) * | 1987-07-28 | 1990-08-14 | Grumman Aerospace Corporation | Discrete strain sensor |
US4840481A (en) * | 1987-12-10 | 1989-06-20 | Simmonds Precision | Polarimetric optical frequency domain distributed strain sensor and method |
US4891511A (en) * | 1988-08-31 | 1990-01-02 | The Babcock & Wilcox Co. | Fiber optic microbend sensor with braided fibers |
US5094527A (en) * | 1990-05-14 | 1992-03-10 | Lockheed Corporation | Temperature compensated strain sensor for composite structures |
US5132529A (en) * | 1990-08-23 | 1992-07-21 | The United States Of America As Represented By The United States Department Of Energy | Fiber-optic strain gauge with attached ends and unattached microbend section |
FR2673713B1 (fr) * | 1991-03-07 | 1993-06-25 | Framatome Sa | Capteur optique, en particulier capteur de pression et procede de mesure optique correspondant. |
DE4305364C1 (de) * | 1992-10-20 | 1994-04-28 | Schlattl Werner Bavaria Tech | Schweißzange |
JPH0687374U (ja) * | 1993-06-01 | 1994-12-22 | 株式会社創作屋服飾研究所 | テンションコントローラー |
WO1997000428A1 (en) * | 1995-06-14 | 1997-01-03 | Owens Corning | Method and apparatus for damage detection and nondestructive evaluation of structural integrity using hollow glass fibers |
US5818982A (en) * | 1996-04-01 | 1998-10-06 | Voss; Karl Friedrich | Fiber optic sensor based upon buckling of a freely suspended length of fiber |
US5757473A (en) * | 1996-11-13 | 1998-05-26 | Noranda, Inc. | Optical strain sensor for the measurement of microdeformations of surfaces |
DE19922102B4 (de) * | 1999-05-17 | 2004-05-13 | Telegärtner Gerätebau GmbH | Faser-Bragg-Gitter-Sensoranordnung zur Ermittlung physikalischer Größen |
US6776543B1 (en) * | 2003-02-04 | 2004-08-17 | Hewlett-Packard Development Company, L.P. | Fiber optic print media thickness sensor and method |
US20040252290A1 (en) * | 2003-06-10 | 2004-12-16 | Ferguson Gary W. | Optical strain gauge and methods of use including a wind measurement device |
US7869909B2 (en) * | 2004-07-26 | 2011-01-11 | Harold Harrison | Stress monitoring system for railways |
US7394064B2 (en) | 2004-10-05 | 2008-07-01 | Halliburton Energy Services, Inc. | Measuring the weight on a drill bit during drilling operations using coherent radiation |
EP2462864B1 (en) * | 2006-05-24 | 2014-10-15 | Tarilian Laser Technologies, Limited | Optical vital sign detection method and measurement device |
US20080071180A1 (en) * | 2006-05-24 | 2008-03-20 | Tarilian Laser Technologies, Limited | Vital Sign Detection Method and Measurement Device |
CN102519500B (zh) | 2007-01-31 | 2015-08-12 | 泰瑞连激光技术有限公司 | 光功率调制 |
US20110106459A1 (en) * | 2009-10-29 | 2011-05-05 | Northrop Grumman Corporation | In-situ optical crack measurement using a dot pattern |
CN103852389A (zh) * | 2012-11-28 | 2014-06-11 | 海洋王(东莞)照明科技有限公司 | 导光板抗冲击强度测试方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3602037A (en) * | 1969-07-09 | 1971-08-31 | Franklin D Neu | Apparatus for measuring minute deflections |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4071753A (en) * | 1975-03-31 | 1978-01-31 | Gte Laboratories Incorporated | Transducer for converting acoustic energy directly into optical energy |
-
1977
- 1977-07-27 GB GB31643/77A patent/GB1584173A/en not_active Expired
- 1977-10-31 US US05/846,799 patent/US4163397A/en not_active Expired - Lifetime
-
1978
- 1978-05-05 DE DE19782819590 patent/DE2819590A1/de active Granted
- 1978-07-27 JP JP9205278A patent/JPS5441157A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3602037A (en) * | 1969-07-09 | 1971-08-31 | Franklin D Neu | Apparatus for measuring minute deflections |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1979000377A1 (en) * | 1977-12-12 | 1979-06-28 | T Litovitz | Optical sensing apparatus and method |
EP0007312A1 (en) * | 1977-12-12 | 1980-01-23 | Pedro B Macedo | OPTICAL SENSOR APPARATUS. |
EP0007312A4 (en) * | 1977-12-12 | 1981-12-04 | Pedro B Macedo | OPTICAL MEASURING DEVICE. |
FR2480433A1 (fr) * | 1980-04-11 | 1981-10-16 | Fort Francois | Capteur par detection de pression |
EP0038401A1 (de) * | 1980-04-22 | 1981-10-28 | Philips Kommunikations Industrie AG | Verfahren zur Überwachung von physikalischen Grössen von Bauteilen |
EP0086231A1 (en) * | 1981-08-27 | 1983-08-24 | Trw Inc. | Microbending of optical fibers for remote force measurement |
EP0086231A4 (en) * | 1981-08-27 | 1984-07-26 | Trw Inc | MICROFLEXION OF OPTICAL FIBERS FOR THE REMOTE MEASUREMENT OF A FORCE. |
DE3441792C1 (de) * | 1984-11-15 | 1985-11-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Faseroptischer Kraftsensor, insbesondere Drucksensor |
DE4132113A1 (de) * | 1991-09-26 | 1993-04-01 | Siemens Ag | Messaufnehmer fuer laengen- oder abstandsaenderungen |
Also Published As
Publication number | Publication date |
---|---|
US4163397A (en) | 1979-08-07 |
JPH0229963B2 (US20110009641A1-20110113-C00185.png) | 1990-07-03 |
GB1584173A (en) | 1981-02-11 |
DE2819590C2 (US20110009641A1-20110113-C00185.png) | 1987-02-19 |
JPS5441157A (en) | 1979-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |