NO834587L - Forbedret fiberoptisk sensor for detektering av en overflates svaert smaa forskyvninger - Google Patents
Forbedret fiberoptisk sensor for detektering av en overflates svaert smaa forskyvningerInfo
- Publication number
- NO834587L NO834587L NO834587A NO834587A NO834587L NO 834587 L NO834587 L NO 834587L NO 834587 A NO834587 A NO 834587A NO 834587 A NO834587 A NO 834587A NO 834587 L NO834587 L NO 834587L
- Authority
- NO
- Norway
- Prior art keywords
- signal
- frequency
- wave
- detector
- amplitude
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 111
- 230000003287 optical effect Effects 0.000 title claims description 46
- 230000001427 coherent effect Effects 0.000 claims abstract description 36
- 230000010287 polarization Effects 0.000 claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 claims abstract description 23
- 238000002839 fiber optic waveguide Methods 0.000 claims abstract description 18
- 230000001902 propagating effect Effects 0.000 claims description 35
- 230000010363 phase shift Effects 0.000 claims description 25
- 230000033001 locomotion Effects 0.000 claims description 18
- 230000003111 delayed effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims 2
- 230000000737 periodic effect Effects 0.000 claims 1
- 239000000523 sample Substances 0.000 abstract description 98
- 239000013307 optical fiber Substances 0.000 description 33
- 238000012360 testing method Methods 0.000 description 16
- 230000006870 function Effects 0.000 description 13
- 238000010897 surface acoustic wave method Methods 0.000 description 12
- 230000035945 sensitivity Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 230000002452 interceptive effect Effects 0.000 description 5
- 230000000644 propagated effect Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004883 computer application Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
- G01H9/006—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors the vibrations causing a variation in the relative position of the end of a fibre and another element
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
- Optical Transform (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36842582A | 1982-04-14 | 1982-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO834587L true NO834587L (no) | 1983-12-13 |
Family
ID=23451150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO834587A NO834587L (no) | 1982-04-14 | 1983-12-13 | Forbedret fiberoptisk sensor for detektering av en overflates svaert smaa forskyvninger |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0091826B1 (de) |
| KR (1) | KR910000604B1 (de) |
| AT (1) | ATE48033T1 (de) |
| AU (1) | AU569251B2 (de) |
| CA (1) | CA1229674A (de) |
| DE (1) | DE3380854D1 (de) |
| IL (1) | IL68399A (de) |
| NO (1) | NO834587L (de) |
| WO (1) | WO1983003684A1 (de) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2547049B1 (fr) * | 1983-06-03 | 1985-08-30 | Sereg Soc | Dispositif de telemesure par polarimetrie |
| JPS6053984A (ja) * | 1983-09-05 | 1985-03-28 | 三井東圧化学株式会社 | 温度管理用表示ユニット |
| AU576643B2 (en) * | 1984-11-24 | 1988-09-01 | Roke Manor Research Limited | Optical pulse generating |
| US4699513A (en) * | 1985-02-08 | 1987-10-13 | Stanford University | Distributed sensor and method using coherence multiplexing of fiber-optic interferometric sensors |
| US4697926A (en) * | 1985-02-08 | 1987-10-06 | The Board Of Trustees Of The Leland Stanford Junior University | Coherent distributed sensor and method using short coherence length sources |
| DE3510704A1 (de) * | 1985-03-23 | 1986-09-25 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Optisches messgeraet |
| GB8511688D0 (en) * | 1985-05-09 | 1985-06-19 | British Telecomm | Frequency locking electromagnetic signals |
| US4789240A (en) * | 1985-05-28 | 1988-12-06 | Litton Systems, Inc. | Wavelength switched passive interferometric sensor system |
| GB2178165B (en) * | 1985-07-24 | 1989-08-09 | Rolls Royce Plc | Optical monitoring method and apparatus |
| DE3628409C2 (de) * | 1986-08-21 | 1994-09-08 | Teldix Gmbh | Schaltungsanordnung zur Erzeugung einer Phasenmodulation in einer Lichtleitfaser |
| US4775216A (en) * | 1987-02-02 | 1988-10-04 | Litton Systems, Inc. | Fiber optic sensor array and method |
| US4784453A (en) * | 1987-02-02 | 1988-11-15 | Litton Systems, Inc. | Backward-flow ladder architecture and method |
| US4778239A (en) * | 1987-02-02 | 1988-10-18 | Litton Systems, Inc. | Feed-backward lattice architecture and method |
| US4799752A (en) * | 1987-09-21 | 1989-01-24 | Litton Systems, Inc. | Fiber optic gradient hydrophone and method of using same |
| DE3916276A1 (de) * | 1989-05-19 | 1990-11-22 | Betr Forsch Inst Angew Forsch | Verfahren und vorrichtung zur interferometrischen detektion von oberflaechenverschiebungen bei festkoerpern |
| US5475216A (en) * | 1990-05-22 | 1995-12-12 | Danver; Bruce A. | Fiber optic sensor having mandrel wound reference and sensing arms |
| US5155548A (en) * | 1990-05-22 | 1992-10-13 | Litton Systems, Inc. | Passive fiber optic sensor with omnidirectional acoustic sensor and accelerometer |
| FR2689632B1 (fr) * | 1992-04-02 | 1997-09-19 | Thomson Csf | Detecteur a fibre optique de contraintes. |
| GB9718405D0 (en) * | 1997-08-29 | 1997-11-05 | Bradford Particle Design Ltd | Laser Interferometer |
| WO2009085690A1 (en) | 2007-12-21 | 2009-07-09 | Bausch & Lomb Incorporated | Ophthalmic instrument alignment apparatus and method of using same |
| US8294971B2 (en) | 2008-12-18 | 2012-10-23 | Bausch • Lomb Incorporated | Apparatus comprising an optical path delay scanner |
| FR3029285B1 (fr) * | 2014-11-27 | 2017-12-29 | Menapic | Dispositif de caracterisation par interferometrie, et procede correspondant |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3782176A (en) * | 1972-03-30 | 1974-01-01 | Gen Electric | Apparatus for measuring vibration in a moving object |
| DE2457253C2 (de) * | 1974-12-04 | 1982-09-02 | Krautkrämer, GmbH, 5000 Köln | Optisches interferometrisches Verfahren und Vorrichtung zur berührungslosen Messung der durch Ultraschallwellen verursachten Oberflächenauslenkung eines Prüflings |
| US4180328A (en) * | 1976-07-06 | 1979-12-25 | United Kingdom Atomic Energy Authority | Interferometer which corrects for spurious vibrations |
| US4313185A (en) * | 1979-12-31 | 1982-01-26 | General Electric Company | Acoustic vibration sensor and sensing system |
| GB2076558B (en) * | 1980-05-22 | 1984-04-18 | Plessey Co Ltd | Differential delay interferometers |
| US4363114A (en) * | 1981-01-21 | 1982-12-07 | The United States Of America As Represented By The Secretary Of The Navy | Low noise remote optical fiber sound detector |
-
1983
- 1983-04-13 DE DE8383302057T patent/DE3380854D1/de not_active Expired
- 1983-04-13 AU AU16047/83A patent/AU569251B2/en not_active Ceased
- 1983-04-13 AT AT83302057T patent/ATE48033T1/de not_active IP Right Cessation
- 1983-04-13 EP EP83302057A patent/EP0091826B1/de not_active Expired
- 1983-04-13 WO PCT/US1983/000533 patent/WO1983003684A1/en not_active Ceased
- 1983-04-13 CA CA000425765A patent/CA1229674A/en not_active Expired
- 1983-04-14 KR KR1019830001554A patent/KR910000604B1/ko not_active Expired
- 1983-04-14 IL IL68399A patent/IL68399A/xx unknown
- 1983-12-13 NO NO834587A patent/NO834587L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0091826A3 (en) | 1985-05-29 |
| CA1229674A (en) | 1987-11-24 |
| WO1983003684A1 (en) | 1983-10-27 |
| EP0091826B1 (de) | 1989-11-15 |
| DE3380854D1 (en) | 1989-12-21 |
| IL68399A (en) | 1987-12-20 |
| AU569251B2 (en) | 1988-01-28 |
| KR910000604B1 (ko) | 1991-01-28 |
| AU1604783A (en) | 1983-11-04 |
| ATE48033T1 (de) | 1989-12-15 |
| EP0091826A2 (de) | 1983-10-19 |
| KR840004581A (ko) | 1984-10-22 |
| IL68399A0 (en) | 1983-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4572949A (en) | Fiber optic sensor for detecting very small displacements of a surface | |
| NO834587L (no) | Forbedret fiberoptisk sensor for detektering av en overflates svaert smaa forskyvninger | |
| US4652744A (en) | Fiber optic sensor for detecting very small displacements of a surface | |
| EP0064789B1 (de) | Interferometer unter Verwendung von optischen Fasern zur Phaseninformationsübertragung | |
| US4162397A (en) | Fiber optic acoustic sensor | |
| CA2476805C (en) | Inline sagnac fiber optic sensor with modulation adjustment | |
| KR870001580B1 (ko) | 수동 간섭계식 감지기 어레이 | |
| US4671659A (en) | Fiber optic displacement sensor | |
| KR910004225B1 (ko) | 물품 표면의 비균질성 검사방법 및 그 장치 | |
| US4238856A (en) | Fiber-optic acoustic sensor | |
| US4313185A (en) | Acoustic vibration sensor and sensing system | |
| NO864639L (no) | Flerkanals fiberoptisk avfoelersystem. | |
| US4902888A (en) | Optical fiber sensor | |
| US4995697A (en) | Fiber optic sensing system | |
| GB2202324A (en) | Optical fibre sensing system | |
| US5229832A (en) | Optical ultrasonic material characterization apparatus and method | |
| US6563588B2 (en) | Apparatus and method for measurement of fluid viscosity | |
| US5477324A (en) | Method and apparatus for detecting surface wave vector dynamics using three beams of coherent light | |
| US7242481B2 (en) | Laser vibrometry with coherent detection | |
| Di Sante et al. | A novel fiber optic sensor for multiple and simultaneous measurement of vibration velocity | |
| JPS63118624A (ja) | 光ファイバ測定装置および方法 | |
| KR100902045B1 (ko) | 간섭계를 이용한 표면 진동 측정 시스템 및 방법 | |
| GB2207236A (en) | Sensing temperature or pressure distribution | |
| US11976963B2 (en) | Fibre-optic acoustic sensor and associated measurement system, vehicle and measurement method | |
| Di Sante et al. | Multipoint optical fiber vibrometer |