CA1123084A - Ring-type laser rate gyro - Google Patents
Ring-type laser rate gyroInfo
- Publication number
- CA1123084A CA1123084A CA319,565A CA319565A CA1123084A CA 1123084 A CA1123084 A CA 1123084A CA 319565 A CA319565 A CA 319565A CA 1123084 A CA1123084 A CA 1123084A
- Authority
- CA
- Canada
- Prior art keywords
- mirror
- gyro
- rate
- mirrors
- laser beams
- 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.)
- Expired
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
- G01C19/66—Ring laser gyrometers
- G01C19/68—Lock-in prevention
- G01C19/70—Lock-in prevention by mechanical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/083—Ring lasers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Plasma & Fusion (AREA)
- Gyroscopes (AREA)
- Lasers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR78/00871 | 1978-01-13 | ||
FR7800871A FR2414715A1 (fr) | 1978-01-13 | 1978-01-13 | Procede d'attenua |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1123084A true CA1123084A (en) | 1982-05-04 |
Family
ID=9203408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA319,565A Expired CA1123084A (en) | 1978-01-13 | 1979-01-12 | Ring-type laser rate gyro |
Country Status (7)
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2030760B (en) * | 1978-09-27 | 1982-08-11 | Ferranti Ltd | Ring lasers |
US4410274A (en) * | 1981-06-08 | 1983-10-18 | The Singer Company | Ring laser gyroscope with doppler mirrors and offset actuators |
US4410276A (en) * | 1981-06-15 | 1983-10-18 | The Singer Company | Ring laser gyroscope with doppler mirrors |
US4824252A (en) * | 1982-06-25 | 1989-04-25 | Honeywell Inc. | Laser gyro system |
US5311280A (en) * | 1983-07-21 | 1994-05-10 | Kearfott Guidance & Navigation Corporation | Laser light length control assembly for ring laser gyro |
EP0171428A1 (en) * | 1984-02-08 | 1986-02-19 | Sundstrand Optical Technologies, Inc. | Ring laser gyro tilt mirror dither |
US4691323A (en) * | 1984-06-11 | 1987-09-01 | The Singer Company | Path length controller for ring laser gyroscope |
US4824253A (en) * | 1987-04-08 | 1989-04-25 | Litton Systems, Inc. | Glass driver for laser mirror |
DE3935891A1 (de) * | 1988-12-23 | 1990-07-19 | Teldix Gmbh | Anordnung zum verstellen eines spiegels in einem laserkreisel |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3581227A (en) * | 1968-04-18 | 1971-05-25 | Honeywell Inc | Adjustable, thin membrane mirror for use in the stabilization of ring lasers |
US3533014A (en) * | 1968-06-04 | 1970-10-06 | Massachusetts Inst Technology | Gas ring laser using oscillating radiation scattering sources within the laser cavity |
US3786368A (en) * | 1972-10-20 | 1974-01-15 | Bell Telephone Labor Inc | Planar waveguide-type distributed feedback laser with angular tuning |
US4113387A (en) * | 1977-02-14 | 1978-09-12 | Rockwell International Corporation | Dual mode laser optics control for ring laser gyro |
-
1978
- 1978-01-13 FR FR7800871A patent/FR2414715A1/fr active Granted
- 1978-12-14 EP EP78400240A patent/EP0003086B1/fr not_active Expired
- 1978-12-14 DE DE7878400240T patent/DE2861124D1/de not_active Expired
- 1978-12-22 WO PCT/FR1978/000054 patent/WO1979000502A1/fr unknown
- 1978-12-22 US US06/074,716 patent/US4348113A/en not_active Expired - Lifetime
- 1978-12-22 JP JP50019078A patent/JPS55500024A/ja active Pending
-
1979
- 1979-01-12 CA CA319,565A patent/CA1123084A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4348113A (en) | 1982-09-07 |
FR2414715B1 (US06534493-20030318-C00184.png) | 1980-08-22 |
DE2861124D1 (en) | 1981-12-10 |
EP0003086B1 (fr) | 1981-09-23 |
JPS55500024A (US06534493-20030318-C00184.png) | 1980-01-24 |
EP0003086A1 (fr) | 1979-07-25 |
FR2414715A1 (fr) | 1979-08-10 |
WO1979000502A1 (fr) | 1979-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 19990504 |