FR2434371A1 - Gyroscope interferometrique utilisable avec une source lumineuse a faible coherence - Google Patents
Gyroscope interferometrique utilisable avec une source lumineuse a faible coherenceInfo
- Publication number
- FR2434371A1 FR2434371A1 FR7920628A FR7920628A FR2434371A1 FR 2434371 A1 FR2434371 A1 FR 2434371A1 FR 7920628 A FR7920628 A FR 7920628A FR 7920628 A FR7920628 A FR 7920628A FR 2434371 A1 FR2434371 A1 FR 2434371A1
- Authority
- FR
- France
- Prior art keywords
- light source
- interferometric
- low coherence
- coherence light
- interferometric gyroscope
- 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
- 230000003287 optical effect Effects 0.000 abstract 2
- 230000010363 phase shift Effects 0.000 abstract 1
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
Abstract
L'invention concerne les gyroscopes interférométriques. Un gyroscope interférométrique comprend deux modulateurs acousto-optiques 18 et 27 qui appliquent des première et seconde frequences sur deux composantes de lumière qui sont obtenues par division à partir d'une source 11. Les première et seconde composantes modulées sont injectées dans des sens opposés dans un chemin optique 24, dans lequel elles sont soumises à un déphasage qui est fonction de la vitesse de rotation du chemin optique autour de son axe sensible 40. Application aux systemes de navigation par inertie.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/936,678 US4208128A (en) | 1978-08-23 | 1978-08-23 | Interferometer gyro using heterodyne phase detection without severe light source coherence requirements |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2434371A1 true FR2434371A1 (fr) | 1980-03-21 |
FR2434371B1 FR2434371B1 (fr) | 1983-10-28 |
Family
ID=25468950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7920628A Granted FR2434371A1 (fr) | 1978-08-23 | 1979-08-13 | Gyroscope interferometrique utilisable avec une source lumineuse a faible coherence |
Country Status (6)
Country | Link |
---|---|
US (1) | US4208128A (fr) |
JP (1) | JPS5530691A (fr) |
CA (1) | CA1126841A (fr) |
DE (1) | DE2934191A1 (fr) |
FR (1) | FR2434371A1 (fr) |
GB (1) | GB2028497B (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4273445A (en) * | 1978-08-23 | 1981-06-16 | Rockwell International Corporation | Interferometer gyroscope formed on a single plane optical waveguide |
US4299490A (en) * | 1978-12-07 | 1981-11-10 | Mcdonnell Douglas Corporation | Phase nulling optical gyro |
DE2934794A1 (de) * | 1979-08-29 | 1981-03-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur messung absoluter drehungen und anordnung zur durchfuehrung des verfahrens |
US4396290A (en) * | 1979-09-24 | 1983-08-02 | University Of Utah Research Institute | Two pump-frequency-stimulated Brillouin scattering ring laser gyroscope |
GB2067746B (en) * | 1980-01-17 | 1983-08-24 | Standard Telephones Cables Ltd | Measurement of rotation rate using sagnac effect |
DE3040514A1 (de) * | 1980-10-28 | 1982-07-22 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und anordnung zur signalauswertung eines lichtleitfaserrotationssensors |
JPS5879112A (ja) * | 1981-11-06 | 1983-05-12 | Noboru Niwa | リング干渉計用光学系 |
US4634282A (en) * | 1981-11-06 | 1987-01-06 | The Board Of Trustees Of The Leland Stanford Junior University | Multimode fiber optic rotation sensor |
US4456377A (en) * | 1981-11-06 | 1984-06-26 | The Board Of Trustees Of Leland Stanford Jr. Univ. | Multimode fiber optic rotation sensor |
GB2119083A (en) * | 1982-03-08 | 1983-11-09 | Univ London | Optical fibre gyroscope |
US4498773A (en) * | 1983-05-04 | 1985-02-12 | Rockwell International Corporation | Pencil beam interferometer |
JPS6085312A (ja) * | 1983-10-17 | 1985-05-14 | Hitachi Ltd | 固体化干渉計 |
DE3438184A1 (de) * | 1984-10-18 | 1986-04-24 | Bodenseewerk Gerätetechnik GmbH, 7770 Überlingen | Einrichtung zur messung von drehgeschwindigkeiten |
US4662751A (en) * | 1985-09-24 | 1987-05-05 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Closed loop fiber optic rotation sensor |
US4834111A (en) * | 1987-01-12 | 1989-05-30 | The Trustees Of Columbia University In The City Of New York | Heterodyne interferometer |
JPH0268347U (fr) * | 1988-11-08 | 1990-05-23 | ||
DE3928715C2 (de) * | 1989-08-30 | 1993-12-02 | Deutsche Aerospace | Faserkreisel |
EP3234500A4 (fr) | 2014-12-19 | 2018-07-04 | University of Utah Research Foundation | Système d'interférométrie et procédés associés |
US11162781B2 (en) | 2016-06-23 | 2021-11-02 | University Of Utah Research Foundation | Interferometry systems and methods |
EP3475649A4 (fr) * | 2016-06-23 | 2020-04-22 | University of Utah Research Foundation | Système d'interférométrie et procédés associés |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2350583A1 (fr) * | 1976-05-06 | 1977-12-02 | Massachusetts Inst Technology | Gyroscope a laser |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3627422A (en) * | 1965-06-21 | 1971-12-14 | Varian Associates | Means for avoiding locking in ring lasers |
DE1807247B2 (de) * | 1968-11-06 | 1971-09-16 | Anordnung zur messung von drehgeschwindigkeiten | |
US3861220A (en) * | 1973-10-26 | 1975-01-21 | Us Navy | Microwave gyro |
US4013365A (en) * | 1974-08-29 | 1977-03-22 | The University Of Utah | Laser gyroscope |
US4135822A (en) * | 1976-01-19 | 1979-01-23 | Massachusetts Institute Of Technology | Laser gyroscope |
-
1978
- 1978-08-23 US US05/936,678 patent/US4208128A/en not_active Expired - Lifetime
-
1979
- 1979-07-31 CA CA332,874A patent/CA1126841A/fr not_active Expired
- 1979-08-02 GB GB7927019A patent/GB2028497B/en not_active Expired
- 1979-08-13 JP JP10350479A patent/JPS5530691A/ja active Granted
- 1979-08-13 FR FR7920628A patent/FR2434371A1/fr active Granted
- 1979-08-23 DE DE19792934191 patent/DE2934191A1/de active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2350583A1 (fr) * | 1976-05-06 | 1977-12-02 | Massachusetts Inst Technology | Gyroscope a laser |
Non-Patent Citations (1)
Title |
---|
EXBK/78 * |
Also Published As
Publication number | Publication date |
---|---|
GB2028497B (en) | 1982-11-24 |
FR2434371B1 (fr) | 1983-10-28 |
DE2934191C2 (fr) | 1990-10-31 |
US4208128A (en) | 1980-06-17 |
JPS6316690B2 (fr) | 1988-04-11 |
JPS5530691A (en) | 1980-03-04 |
GB2028497A (en) | 1980-03-05 |
DE2934191A1 (de) | 1980-03-13 |
CA1126841A (fr) | 1982-06-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |