FR2436368A1 - Dispositif de mesure a fibres optiques - Google Patents
Dispositif de mesure a fibres optiquesInfo
- Publication number
- FR2436368A1 FR2436368A1 FR7922661A FR7922661A FR2436368A1 FR 2436368 A1 FR2436368 A1 FR 2436368A1 FR 7922661 A FR7922661 A FR 7922661A FR 7922661 A FR7922661 A FR 7922661A FR 2436368 A1 FR2436368 A1 FR 2436368A1
- Authority
- FR
- France
- Prior art keywords
- optical fiber
- measuring device
- vis
- modulator
- pressure
- 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
- 239000013307 optical fiber Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000000862 absorption spectrum Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000005693 optoelectronics Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/093—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by photoelectric pick-up
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—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
- G01D5/26—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 infrared, visible, or ultraviolet light
- G01D5/268—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 infrared, visible, or ultraviolet light using optical fibres
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
- G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/17—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
- G02F1/178—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups G02F1/015 - G02F1/169 based on pressure effects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Measuring Fluid Pressure (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
L'invention concerne un dispositif de mesure à fibres optiques. Dans ce dispositif qui comporte un système à fibres optiques 2, 3, 4, 7 relié à un circuit opto-électronique (diodes photo-émissives 1, 8, filtres 15, 19, dispositif soustracteur 16, régulateur 17, et un transducteur G1), dans le boîtier duquel est disposée une masse 9 dont le déplacement est détecté par un modulateur 5, ledit modulateur étant constitué en un matériau dont les propriétés optiques sont une dépendance d'au moins une limite d'absorption dans le spectre d'absorption de la lumière dudit matériau, vis-à-vis de la pression. Application notamment aux appareils optiques de mesure de grandeurs physiques tels que pression, force, couple.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7809710A SE413555B (sv) | 1978-09-15 | 1978-09-15 | Fiberoptiskt metdon |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2436368A1 true FR2436368A1 (fr) | 1980-04-11 |
FR2436368B1 FR2436368B1 (fr) | 1983-05-27 |
Family
ID=20335836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7922661A Granted FR2436368A1 (fr) | 1978-09-15 | 1979-09-11 | Dispositif de mesure a fibres optiques |
Country Status (9)
Country | Link |
---|---|
US (1) | US4270050A (fr) |
JP (1) | JPS5542097A (fr) |
CA (1) | CA1117313A (fr) |
CH (1) | CH643062A5 (fr) |
DE (1) | DE2934859A1 (fr) |
FR (1) | FR2436368A1 (fr) |
GB (1) | GB2034460B (fr) |
IT (1) | IT7968814A0 (fr) |
SE (1) | SE413555B (fr) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2491206A1 (fr) * | 1980-09-29 | 1982-04-02 | Asea Ab | Element de detection par voie optique |
FR2492097A1 (fr) * | 1980-09-26 | 1982-04-16 | United Technologies Corp | Capteur de pression optique |
EP0050306A2 (fr) * | 1980-10-21 | 1982-04-28 | Asea Ab | Dispositif de mesure à fibres optiques |
FR2495315A1 (fr) * | 1980-12-01 | 1982-06-04 | Asea Ab | Dispositif de mesure a fibres optiques |
EP0079988A1 (fr) * | 1981-11-23 | 1983-06-01 | Dennis William Burt | Instrument de mesure à fibres optiques |
EP0085875A2 (fr) * | 1982-02-02 | 1983-08-17 | Asea Ab | Dispositif de mesure des grandeurs physiques à fibres optiques |
WO1985005447A1 (fr) * | 1984-05-24 | 1985-12-05 | Thalmond Anstalt | Dispositif pour mesurer une grandeur physique |
EP0184270A2 (fr) * | 1981-09-10 | 1986-06-11 | The Board Of Trustees Of The Leland Stanford Junior University | Déplacement de transducteur composé d'un coupleur à fibres optiques |
EP0224943A2 (fr) * | 1985-10-01 | 1987-06-10 | Philips Patentverwaltung GmbH | Procédé pour mesurer sélectivement selon la longueur d'ondes la diminution en intensité d'un rayonnement dans un système de transmission optique |
EP0251048A1 (fr) * | 1986-06-18 | 1988-01-07 | Schmidt Feintechnik Gmbh | Capteur d'accélération |
WO1990013004A1 (fr) * | 1989-04-26 | 1990-11-01 | Unicon Holdings Limited | Systeme de detection a fibres optiques |
EP0528657A2 (fr) * | 1991-08-21 | 1993-02-24 | Fiberoptic Sensor Technologies, Inc. | Systèmes de mesure de pression à fibres optiques |
EP0594086A1 (fr) * | 1992-10-20 | 1994-04-27 | Bavaria-Tech, Werner Schlattl | Pince de soudage et détecteur électrique |
FR2733057A1 (fr) * | 1995-04-14 | 1996-10-18 | Gec Alsthom T D Balteau | Accelerometre |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4572669A (en) * | 1979-01-22 | 1986-02-25 | Rockwell International Corporation | Method and apparatus for a Fabry-Perot multiple beam fringe sensor |
SE417137B (sv) * | 1979-05-31 | 1981-02-23 | Asea Ab | Optiskt metdon for metning av magnetiska och elektriska felt |
SE420130B (sv) * | 1980-01-24 | 1981-09-14 | Asea Ab | Optiskt metdon for metning av kraft eller tryck |
DE3017309A1 (de) * | 1980-05-06 | 1981-11-12 | Siemens AG, 1000 Berlin und 8000 München | Stellungsgeberanordnung mit mehreren stellungsgebern und einer mit diesen verbundenen steuereinheit |
SE422111B (sv) * | 1980-06-23 | 1982-02-15 | Asea Ab | Fiberoptiskt kopplat metdon |
US4321831A (en) * | 1980-09-26 | 1982-03-30 | United Technologies Corporation | Digitally compatible optical pressure measurement |
SE8006827L (sv) * | 1980-09-30 | 1982-03-31 | Asea Ab | Fiberoptiskt metdon med kompensation for reflexioner i fiberoptiken och med mojlighet till samtidig metning av flera metstorheter |
US4626693A (en) * | 1980-10-06 | 1986-12-02 | The Regents Of The University Of California | Remote multi-position information gathering system and method |
US4799756A (en) * | 1980-10-06 | 1989-01-24 | The Regents Of The University Of California | Remote multi-position information gathering system and method |
JPS6219937Y2 (fr) * | 1981-01-20 | 1987-05-21 | ||
SE435967B (sv) * | 1982-04-01 | 1984-10-29 | Asea Ab | Fiberoptiskt luminiscensmetdon |
SE435760B (sv) * | 1982-04-21 | 1984-10-15 | Asea Ab | Fiberoptisk legesgivare |
EP0095273A1 (fr) * | 1982-05-21 | 1983-11-30 | Gec Avionics Limited | Méthode optique pour mesurer des déplacements |
SE430825B (sv) * | 1982-05-27 | 1983-12-12 | Asea Ab | Fiberoptisk givare for metning av dynamiska rorelser |
JPS59501639A (ja) * | 1982-09-25 | 1984-09-13 | レニシヨウ パブリツク リミテツド カンパニ− | 変位測定装置 |
US4599901A (en) * | 1982-09-30 | 1986-07-15 | University Of California | Pressure-sensitive optrode |
US4509370A (en) * | 1982-09-30 | 1985-04-09 | Regents Of The University Of California | Pressure-sensitive optrode |
US4495819A (en) * | 1982-12-23 | 1985-01-29 | Gould Inc. | Optical pressure sensor |
SE435761B (sv) * | 1983-03-24 | 1984-10-15 | Asea Ab | Fiberoptiskt luminiscensmetdon |
US4678905A (en) * | 1984-05-18 | 1987-07-07 | Luxtron Corporation | Optical sensors for detecting physical parameters utilizing vibrating piezoelectric elements |
US4897541A (en) * | 1984-05-18 | 1990-01-30 | Luxtron Corporation | Sensors for detecting electromagnetic parameters utilizing resonating elements |
US4945230A (en) * | 1984-07-06 | 1990-07-31 | Metricor, Inc. | Optical measuring device using a spectral modulation sensor having an optically resonant structure |
US4678904A (en) * | 1984-07-06 | 1987-07-07 | Technology Dynamics, Inc. | Optical measuring device using a spectral modulation sensor having an optically resonant structure |
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 |
US4683421A (en) * | 1985-03-29 | 1987-07-28 | Westinghouse Electric Corp. | Drift compensation technique for a magneto-optic current sensor |
US4689483A (en) * | 1985-04-25 | 1987-08-25 | Advanced Fiberoptic Technologies Corporation | Fiber optical temperature measuring apparatus |
US4752141A (en) * | 1985-10-25 | 1988-06-21 | Luxtron Corporation | Fiberoptic sensing of temperature and/or other physical parameters |
JPS62127641A (ja) * | 1985-11-29 | 1987-06-09 | Ando Electric Co Ltd | 光部品測定用光源選択装置 |
DE3622174A1 (de) * | 1986-06-18 | 1987-12-23 | Schmidt Feintechnik Gmbh | Beschleunigungssensor |
JPS63308531A (ja) * | 1987-06-10 | 1988-12-15 | Toho Gas Co Ltd | 光学式ガス圧力センサ |
US4805461A (en) * | 1987-10-02 | 1989-02-21 | Washington State University Research Foundation, Inc. | Transducer and systems for high speed measurement of shock loads |
DE3820912A1 (de) * | 1988-06-21 | 1989-12-28 | Bayerische Motoren Werke Ag | Fiberoptisches sensorsystem |
US5152291A (en) * | 1990-09-07 | 1992-10-06 | Hewlett-Packard Company | Acoustic fiber measurement of intravascular blood |
DE4001953A1 (de) * | 1990-01-24 | 1991-07-25 | Giese Erhard | Drucksensor |
US5176882A (en) * | 1990-12-06 | 1993-01-05 | Hewlett-Packard Company | Dual fiberoptic cell for multiple serum measurements |
US5212508A (en) * | 1991-06-28 | 1993-05-18 | Eastman Kodak Company | Remote photo-electric interface in camera |
US5270781A (en) * | 1992-03-02 | 1993-12-14 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of determining shear stress employing a monomer-polymer laminate structure |
US5394752A (en) * | 1993-03-16 | 1995-03-07 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method for determing shear direction using liquid crystal coatings |
US5386729A (en) * | 1993-09-22 | 1995-02-07 | The Babcock & Wilcox Company | Temperature compensated microbend fiber optic differential pressure transducer |
US5594240A (en) * | 1995-03-20 | 1997-01-14 | The United States Of America As Represented By The United States Department Of Energy | Strain-optic voltage monitor wherein strain causes a change in the optical absorption of a crystalline material |
US6110130A (en) * | 1997-04-21 | 2000-08-29 | Virtual Technologies, Inc. | Exoskeleton device for directly measuring fingertip position and inferring finger joint angle |
DE19756706A1 (de) * | 1997-12-19 | 1999-06-24 | Ifak Inst Fuer Automation Und | Vorrichtung und Verfahren zur Detektion und Identifikation von Personen, Fahrzeugen und Schildern |
DE10026330A1 (de) * | 2000-05-26 | 2001-11-29 | Bosch Gmbh Robert | Verformungssensor |
JP2006119098A (ja) * | 2004-10-25 | 2006-05-11 | Denso Corp | 歩行者衝突検出センサ |
US20060162984A1 (en) * | 2005-01-25 | 2006-07-27 | Trw Automotive U.S. Llc | Crash sensor for sensing an impact to a vehicle in response to reduced light intensity and an associated method |
US7222534B2 (en) * | 2005-03-31 | 2007-05-29 | Pgs Americas, Inc. | Optical accelerometer, optical inclinometer and seismic sensor system using such accelerometer and inclinometer |
FR3094501B1 (fr) * | 2019-03-29 | 2021-04-02 | Oledcomm | Système d’éclairage et de communication comportant un émetteur et un récepteur de signaux lumineux modulés |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3462223A (en) * | 1965-10-21 | 1969-08-19 | Gen Electric | Optical strain gauge |
FR2103683A5 (fr) * | 1970-07-10 | 1972-04-14 | Ulrich Helmut |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578864A (en) * | 1968-09-16 | 1971-05-18 | Bell & Howell Co | Semiconductor stress transducer |
FR2105327A5 (en) * | 1970-09-01 | 1972-04-28 | Robillard Jean | Pressure gauge - esp for blood, using a liquid crystal |
DE2231776B2 (de) * | 1972-06-29 | 1981-04-09 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Lichtschranke zur Messung der Lage oder Abmessung von Gegenständen |
US4147977A (en) * | 1977-08-15 | 1979-04-03 | Polaris N.V., Inc. | Motion analyzing system |
-
1978
- 1978-09-15 SE SE7809710A patent/SE413555B/sv unknown
-
1979
- 1979-08-08 CH CH725279A patent/CH643062A5/de not_active IP Right Cessation
- 1979-08-29 DE DE19792934859 patent/DE2934859A1/de not_active Withdrawn
- 1979-09-07 US US06/073,191 patent/US4270050A/en not_active Expired - Lifetime
- 1979-09-11 FR FR7922661A patent/FR2436368A1/fr active Granted
- 1979-09-13 JP JP11681679A patent/JPS5542097A/ja active Pending
- 1979-09-13 CA CA000335605A patent/CA1117313A/fr not_active Expired
- 1979-09-14 GB GB7932026A patent/GB2034460B/en not_active Expired
- 1979-09-14 IT IT7968814A patent/IT7968814A0/it unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3462223A (en) * | 1965-10-21 | 1969-08-19 | Gen Electric | Optical strain gauge |
FR2103683A5 (fr) * | 1970-07-10 | 1972-04-14 | Ulrich Helmut |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2492097A1 (fr) * | 1980-09-26 | 1982-04-16 | United Technologies Corp | Capteur de pression optique |
FR2491206A1 (fr) * | 1980-09-29 | 1982-04-02 | Asea Ab | Element de detection par voie optique |
EP0050306A2 (fr) * | 1980-10-21 | 1982-04-28 | Asea Ab | Dispositif de mesure à fibres optiques |
EP0050306A3 (fr) * | 1980-10-21 | 1983-12-14 | Asea Ab | Dispositif de mesure à fibres optiques |
FR2495315A1 (fr) * | 1980-12-01 | 1982-06-04 | Asea Ab | Dispositif de mesure a fibres optiques |
EP0184270A2 (fr) * | 1981-09-10 | 1986-06-11 | The Board Of Trustees Of The Leland Stanford Junior University | Déplacement de transducteur composé d'un coupleur à fibres optiques |
EP0184270A3 (fr) * | 1981-09-10 | 1987-04-08 | The Board Of Trustees Of The Leland Stanford Junior University | Déplacement de transducteur composé d'un coupleur à fibres optiques |
EP0079988A1 (fr) * | 1981-11-23 | 1983-06-01 | Dennis William Burt | Instrument de mesure à fibres optiques |
EP0085875A2 (fr) * | 1982-02-02 | 1983-08-17 | Asea Ab | Dispositif de mesure des grandeurs physiques à fibres optiques |
EP0085875A3 (fr) * | 1982-02-02 | 1986-09-17 | Asea Ab | Dispositif de mesure des grandeurs physiques à fibres optiques |
WO1985005447A1 (fr) * | 1984-05-24 | 1985-12-05 | Thalmond Anstalt | Dispositif pour mesurer une grandeur physique |
EP0224943A2 (fr) * | 1985-10-01 | 1987-06-10 | Philips Patentverwaltung GmbH | Procédé pour mesurer sélectivement selon la longueur d'ondes la diminution en intensité d'un rayonnement dans un système de transmission optique |
EP0224943A3 (fr) * | 1985-10-01 | 1989-03-15 | Philips Patentverwaltung GmbH | Procédé pour mesurer sélectivement selon la longueur d'ondes la diminution en intensité d'un rayonnement dans un système de transmission optique |
EP0251048A1 (fr) * | 1986-06-18 | 1988-01-07 | Schmidt Feintechnik Gmbh | Capteur d'accélération |
WO1990013004A1 (fr) * | 1989-04-26 | 1990-11-01 | Unicon Holdings Limited | Systeme de detection a fibres optiques |
EP0528657A2 (fr) * | 1991-08-21 | 1993-02-24 | Fiberoptic Sensor Technologies, Inc. | Systèmes de mesure de pression à fibres optiques |
EP0528657A3 (en) * | 1991-08-21 | 1993-05-26 | Fiberoptic Sensor Technologies, Inc. | Improved fiber optic pressure sensor systems |
EP0594086A1 (fr) * | 1992-10-20 | 1994-04-27 | Bavaria-Tech, Werner Schlattl | Pince de soudage et détecteur électrique |
WO1994008749A1 (fr) * | 1992-10-20 | 1994-04-28 | Bavaria-Tech Werner Schlattl | Pince a souder et detecteur electrique |
FR2733057A1 (fr) * | 1995-04-14 | 1996-10-18 | Gec Alsthom T D Balteau | Accelerometre |
Also Published As
Publication number | Publication date |
---|---|
US4270050A (en) | 1981-05-26 |
DE2934859A1 (de) | 1980-03-27 |
JPS5542097A (en) | 1980-03-25 |
CH643062A5 (de) | 1984-05-15 |
GB2034460B (en) | 1983-02-09 |
SE7809710L (sv) | 1980-03-16 |
GB2034460A (en) | 1980-06-04 |
CA1117313A (fr) | 1982-02-02 |
FR2436368B1 (fr) | 1983-05-27 |
IT7968814A0 (it) | 1979-09-14 |
SE413555B (sv) | 1980-06-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2436368A1 (fr) | Dispositif de mesure a fibres optiques | |
FR2427584A1 (fr) | Dispositif a fibres optiques pour la mesure de grandeurs physiques telles que la position, la vitesse, la force, la pression et autres grandeurs similaires | |
FR2422971A1 (fr) | Attenuateur optique fixe pour rayonnements lumineux guides par fibre optique | |
DK0519219T3 (da) | Anordning til optisk forbindelse af et optisk element, for eksempel en optisk fiber, med en linse | |
FR2439393A1 (fr) | Detecteur optique de temperature | |
FR2368052A1 (fr) | Dispositif de couplage et de derivation optique | |
CA2072998A1 (fr) | Immunodosage optique | |
FR2615284B1 (fr) | Dispositif pour la detection de vibrations comportant une fibre optique multimode comme element sensible | |
FR2597971B1 (fr) | Capteur a fibre optique | |
SE8400366L (sv) | Fiberoptisk accelerometer | |
FR2416451A1 (fr) | Interferometre comportant une bobine constituee par un guide d'ondes monomode | |
EP0370663A3 (fr) | Couplage optique pour fibres optiques et éléments optiques | |
FR2436404A1 (fr) | Element de derivation, notamment pour systemes de transmission optique d'informations | |
FR2623297B1 (fr) | Dispositif de couplage entre une fibre optique et un composant optoelectronique | |
EP0184270A3 (fr) | Déplacement de transducteur composé d'un coupleur à fibres optiques | |
FR2455753A1 (fr) | Dispositif compact de couplage optique et gyrometre interferometrique a fibre optique comportant un tel dispositif | |
KR850007466A (ko) | 규석격막모듈의 격막이 휘는 정도를 감지하기 위한 시스템 | |
ATE192574T1 (de) | Feuchtesensor | |
EP0074055A3 (fr) | Capteur de pression à fibres optiques | |
FR2330022A1 (fr) | Dispositif pour coupler une source de rayonnement lumineux avec un faisceau de fibres optiques | |
DE3781022D1 (de) | Vorrichtung zur messung der durchgangsdaempfung eines lichtwellenleiters. | |
SE8305310L (sv) | Panelindikator | |
EP0388345A3 (fr) | Chaíne de mesure d'angle ou de position optique et à transmission par fibres optiques intrinsèquement linéaire et référencé utilisant une ou plusieurs sources lumineuses | |
EP0141697A3 (fr) | Dispositif de transmission de signaux lumineux entre des fibres optiques | |
EP0142393A3 (fr) | Dispositif de couplage de câbles de fibres optiques |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |