BR9713003A - GirÈmetro de fibra óptica multi-modo, de resolução e estabilidade aperfeiçoadas - Google Patents
GirÈmetro de fibra óptica multi-modo, de resolução e estabilidade aperfeiçoadasInfo
- Publication number
- BR9713003A BR9713003A BR9713003-6A BR9713003A BR9713003A BR 9713003 A BR9713003 A BR 9713003A BR 9713003 A BR9713003 A BR 9713003A BR 9713003 A BR9713003 A BR 9713003A
- Authority
- BR
- Brazil
- Prior art keywords
- stability
- fiber optic
- mode fiber
- improved resolution
- values
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
- G01C19/721—Details
Abstract
"GIRÈMETRO DE FIBRA óPTICA MULTI-MODO, DE RESOLUçãO E ESTABILIDADE APERFEIçOADAS". A invenção se refere a um girómetro de fibra óptica com alta estabilidade do fator de escala, compreendendo uma fonte de luz (2), que alimenta as duas extremidades de uma guia em anel (1), e um sensor (6), que recebe as duas distribuições modais que percorreram a guia (1) em direções mutuamente inversas, os valores V~ dc~, V~ 1~ e V~ 2~ representando os componentes contínuos respectivamente incoerentes da fundamental e da harmónica de ordem 1 do sinal óptico sendo usados para estabelecer um quociente independente das flutuações dos componentes do girómetro e que representa o fator de escala. Esses valores são derivados para a primeira detecção e para as duas outras a partir da desmodulação síncrona do sinal óptico. A invenção é útil para usuários e fabricantes de girómetros.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9614048 | 1996-11-14 | ||
| PCT/FR1997/002057 WO1998021551A1 (fr) | 1996-11-14 | 1997-11-14 | Gyrometre a fibre optique multimode, a resolution et a stabilite ameliorees |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9713003A true BR9713003A (pt) | 2000-01-25 |
Family
ID=9497731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9713003-6A BR9713003A (pt) | 1996-11-14 | 1997-11-14 | GirÈmetro de fibra óptica multi-modo, de resolução e estabilidade aperfeiçoadas |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6243167B1 (pt) |
| EP (1) | EP0938644B1 (pt) |
| JP (1) | JP2001504222A (pt) |
| KR (1) | KR100516006B1 (pt) |
| BR (1) | BR9713003A (pt) |
| CA (1) | CA2270578C (pt) |
| DE (1) | DE69721034T2 (pt) |
| WO (1) | WO1998021551A1 (pt) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101946013B1 (ko) | 2011-12-23 | 2019-02-11 | 삼성전자주식회사 | 전기에너지 발생 및 저장장치 |
| US10101160B2 (en) | 2013-07-09 | 2018-10-16 | Honeywell International Inc. | RFOG with low chromatic dispersion |
| FR3105655B1 (fr) * | 2019-12-20 | 2021-11-26 | Valeo Equip Electr Moteur | Dispositif de détermination de la position angulaire d’un rotor de machine électrique tournante |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456377A (en) * | 1981-11-06 | 1984-06-26 | The Board Of Trustees Of Leland Stanford Jr. Univ. | Multimode fiber optic rotation sensor |
| US4634282A (en) * | 1981-11-06 | 1987-01-06 | The Board Of Trustees Of The Leland Stanford Junior University | Multimode fiber optic rotation sensor |
| US4828389A (en) * | 1987-04-21 | 1989-05-09 | Smiths Industries | Integrated triad optical rate sensor apparatus |
| US5048961A (en) * | 1989-03-08 | 1991-09-17 | Sumitomo Electric Industries, Ltd. | Phase modulated fiber-optic gyroscope for measuring the angular velocity of a moving object |
| FR2680570B1 (fr) * | 1991-08-22 | 1995-10-13 | Sagem | Gyrometre en anneau a fibre optique multimode. |
| FR2725784B1 (fr) * | 1994-10-13 | 1997-10-17 | Univ Pasteur | Gyrometre a fibre optique multimode |
-
1997
- 1997-11-14 EP EP97947069A patent/EP0938644B1/fr not_active Expired - Lifetime
- 1997-11-14 KR KR10-1999-7004280A patent/KR100516006B1/ko not_active IP Right Cessation
- 1997-11-14 JP JP52225298A patent/JP2001504222A/ja not_active Ceased
- 1997-11-14 BR BR9713003-6A patent/BR9713003A/pt not_active Application Discontinuation
- 1997-11-14 DE DE69721034T patent/DE69721034T2/de not_active Expired - Lifetime
- 1997-11-14 US US09/297,872 patent/US6243167B1/en not_active Expired - Fee Related
- 1997-11-14 WO PCT/FR1997/002057 patent/WO1998021551A1/fr active IP Right Grant
- 1997-11-14 CA CA002270578A patent/CA2270578C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR100516006B1 (ko) | 2005-09-26 |
| JP2001504222A (ja) | 2001-03-27 |
| CA2270578A1 (fr) | 1998-05-22 |
| DE69721034D1 (de) | 2003-05-22 |
| WO1998021551A1 (fr) | 1998-05-22 |
| CA2270578C (fr) | 2009-12-29 |
| US6243167B1 (en) | 2001-06-05 |
| EP0938644A1 (fr) | 1999-09-01 |
| KR20000053296A (ko) | 2000-08-25 |
| DE69721034T2 (de) | 2004-06-03 |
| EP0938644B1 (fr) | 2003-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA10 | Dismissal: dismissal - article 33 of industrial property law | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |