CA1085031A - Laser gyro with phased dithered mirrors - Google Patents
Laser gyro with phased dithered mirrorsInfo
- Publication number
- CA1085031A CA1085031A CA285,902A CA285902A CA1085031A CA 1085031 A CA1085031 A CA 1085031A CA 285902 A CA285902 A CA 285902A CA 1085031 A CA1085031 A CA 1085031A
- Authority
- CA
- Canada
- Prior art keywords
- mirrors
- mirror
- laser
- gyroscope
- vibratory motion
- 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
- 230000033001 locomotion Effects 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 239000010453 quartz Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 235000012431 wafers Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000035559 beat frequency Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 241000282320 Panthera leo Species 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 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
- G01C19/66—Ring laser gyrometers
- G01C19/68—Lock-in prevention
- G01C19/70—Lock-in prevention by mechanical means
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)
- Lasers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73976776A | 1976-11-08 | 1976-11-08 | |
| US739,767 | 1996-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1085031A true CA1085031A (en) | 1980-09-02 |
Family
ID=24973708
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA285,902A Expired CA1085031A (en) | 1976-11-08 | 1977-08-31 | Laser gyro with phased dithered mirrors |
| CA000457634A Expired CA1180795B (en) | 1976-11-08 | 1984-06-27 | Laser gyro with phased dithered mirrors |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000457634A Expired CA1180795B (en) | 1976-11-08 | 1984-06-27 | Laser gyro with phased dithered mirrors |
Country Status (6)
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1125895A (en) * | 1978-05-26 | 1982-06-15 | Virgil E. Sanders | Laser gyro mode locking reduction scheme |
| IL57936A (en) * | 1978-10-02 | 1982-07-30 | Litton Systems Inc | Ring laser with adjustable mirrors |
| US4243324A (en) * | 1979-03-21 | 1981-01-06 | The Singer Company | Feedback system for controlling lock-in in spring suspended ring laser gyroscope |
| US4383763A (en) * | 1979-09-12 | 1983-05-17 | Litton Systems, Inc. | Controllable mirrors |
| CA1154851A (en) * | 1980-03-24 | 1983-10-04 | Litton Systems, Inc. | Acoustically dithered ring laser gyro |
| US4410276A (en) * | 1981-06-15 | 1983-10-18 | The Singer Company | Ring laser gyroscope with doppler mirrors |
| US4653919A (en) * | 1982-02-08 | 1987-03-31 | Sundstrand Optical Technologies, Inc. | Laser gyro with dithered mirrors and current dither |
| US4551021A (en) * | 1982-03-01 | 1985-11-05 | Honeywell Inc. | Discriminant apparatus for laser gyros |
| US4526469A (en) * | 1982-03-01 | 1985-07-02 | Honeywell Inc. | Discriminant apparatus for laser gyros |
| IL70499A (en) * | 1982-12-27 | 1988-06-30 | Litton Systems Inc | Laser cathode |
| DE3320345A1 (de) * | 1983-06-04 | 1984-12-06 | Litton Systems, Inc., Beverly Hills, Calif. | Ringlaser-gyroskop |
| US4755057A (en) * | 1984-10-02 | 1988-07-05 | Litton Systems, Inc. | Path length control method for ring laser gyroscope |
| US4801206A (en) * | 1986-06-04 | 1989-01-31 | Litton Systems, Inc. | Simplified ring laser gyroscope dither control and method |
| US4779985A (en) * | 1986-12-22 | 1988-10-25 | Litton Systems, Inc. | Dither suspension for ring laser gyroscope and method |
| US5442442A (en) * | 1987-10-28 | 1995-08-15 | Litton Systems, Inc. | Ring laser gyroscope scale factor error control apparatus and method control apparatus and method |
| CN115406468B (zh) * | 2022-11-01 | 2023-01-17 | 天津集智航宇科技有限公司 | 基于机械纳米步进调节激光陀螺的背向散射的装置和方法 |
Family Cites Families (2)
| 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 |
-
1977
- 1977-08-31 CA CA285,902A patent/CA1085031A/en not_active Expired
- 1977-09-11 IL IL52920A patent/IL52920A/xx unknown
- 1977-10-06 GB GB41708/77A patent/GB1536077A/en not_active Expired
- 1977-10-11 FR FR7730553A patent/FR2370262A1/fr active Granted
- 1977-10-12 JP JP12161377A patent/JPS5357793A/ja active Granted
- 1977-11-03 DE DE2749157A patent/DE2749157C3/de not_active Expired
-
1984
- 1984-06-27 CA CA000457634A patent/CA1180795B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2749157C3 (de) | 1980-10-16 |
| CA1180795B (en) | 1985-01-08 |
| FR2370262B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-05-16 |
| JPS5357793A (en) | 1978-05-25 |
| DE2749157A1 (de) | 1978-05-11 |
| FR2370262A1 (fr) | 1978-06-02 |
| JPS5738194B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-08-13 |
| DE2749157B2 (de) | 1980-02-28 |
| GB1536077A (en) | 1978-12-20 |
| IL52920A (en) | 1979-09-30 |
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| US3533014A (en) | Gas ring laser using oscillating radiation scattering sources within the laser cavity | |
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| US4801206A (en) | Simplified ring laser gyroscope dither control and method | |
| US4779985A (en) | Dither suspension for ring laser gyroscope and method | |
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| KR100186906B1 (ko) | 고체 비평면 레이저 자이로스코프 | |
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| JPH038593B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MZSU | Surrender | ||
| MKEX | Expiry |