SE448576B - Forfarande och anordning for reducering av bakatspridning i vibrerande ringlasrar - Google Patents
Forfarande och anordning for reducering av bakatspridning i vibrerande ringlasrarInfo
- Publication number
- SE448576B SE448576B SE8007703A SE8007703A SE448576B SE 448576 B SE448576 B SE 448576B SE 8007703 A SE8007703 A SE 8007703A SE 8007703 A SE8007703 A SE 8007703A SE 448576 B SE448576 B SE 448576B
- Authority
- SE
- Sweden
- Prior art keywords
- mirrors
- signal
- transducers
- difference
- laser
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 description 9
- 238000002789 length control Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 201000004624 Dermatitis Diseases 0.000 description 1
- GKAOGPIIYCISHV-IGMARMGPSA-N Neon-20 Chemical compound [20Ne] GKAOGPIIYCISHV-IGMARMGPSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 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
- 150000002500 ions Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- GKAOGPIIYCISHV-NJFSPNSNSA-N neon-22 Chemical compound [22Ne] GKAOGPIIYCISHV-NJFSPNSNSA-N 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- G01C19/661—Ring laser gyrometers details
- G01C19/665—Ring laser gyrometers details control of the cavity
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9101979A | 1979-11-05 | 1979-11-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8007703L SE8007703L (sv) | 1981-05-06 |
| SE448576B true SE448576B (sv) | 1987-03-02 |
Family
ID=22225409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8007703A SE448576B (sv) | 1979-11-05 | 1980-11-03 | Forfarande och anordning for reducering av bakatspridning i vibrerande ringlasrar |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5933994B2 (de) |
| CA (1) | CA1168740A (de) |
| CH (1) | CH652245A5 (de) |
| DE (1) | DE3040202A1 (de) |
| FR (1) | FR2469025A1 (de) |
| GB (1) | GB2062950B (de) |
| IL (1) | IL61156A (de) |
| IT (1) | IT1146216B (de) |
| SE (1) | SE448576B (de) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4473297A (en) * | 1981-11-12 | 1984-09-25 | The Singer Company | Ring laser gyroscope utilizing phase detector for minimizing beam lock-in |
| US4653919A (en) * | 1982-02-08 | 1987-03-31 | Sundstrand Optical Technologies, Inc. | Laser gyro with dithered mirrors and current dither |
| US4526469A (en) * | 1982-03-01 | 1985-07-02 | Honeywell Inc. | Discriminant apparatus for laser gyros |
| DE3376687D1 (en) * | 1982-03-01 | 1988-06-23 | Honeywell Inc | Angular rate sensor |
| US4551021A (en) * | 1982-03-01 | 1985-11-05 | Honeywell Inc. | Discriminant apparatus for laser gyros |
| US4824252A (en) * | 1982-06-25 | 1989-04-25 | Honeywell Inc. | Laser gyro system |
| US4657392A (en) * | 1982-08-05 | 1987-04-14 | Honeywell Inc. | Lock-in rate discriminate apparatus for ring laser angular rate sensors |
| US4616930A (en) * | 1983-04-20 | 1986-10-14 | Litton Systems, Inc. | Optically biased twin ring laser gyroscope |
| JPS6016481A (ja) * | 1983-07-08 | 1985-01-28 | Japan Aviation Electronics Ind Ltd | リングレ−ザジヤイロ |
| JPS6016480A (ja) * | 1983-07-08 | 1985-01-28 | Japan Aviation Electronics Ind Ltd | レ−ザ角速度センサ |
| JPS6116587A (ja) * | 1984-07-02 | 1986-01-24 | Japan Aviation Electronics Ind Ltd | 光角速度計 |
| US4698823A (en) * | 1984-09-12 | 1987-10-06 | Litton Systems Inc. | System for reducing the sensitivity of a ring laser gyro to changes in a magnetic field |
| US4783169A (en) * | 1985-08-09 | 1988-11-08 | Litton Systems, Inc. | Control of a ring laser gyro cavity according to a preselected model |
| US4795259A (en) * | 1986-10-31 | 1989-01-03 | Honeywell Inc. | Path length control mechanization for a ring laser angular rate sensor |
| GB2301932B (en) * | 1988-10-27 | 1997-10-08 | Litton Systems Inc | Apparatus and method for correcting ring laser gyroscope phase angle errors induced by lock-in |
| FR2645263B1 (fr) * | 1989-03-30 | 1991-07-26 | Salaberry Bernard De | Capteur de position optique pour gyrometre a laser |
| DE4009919A1 (de) * | 1989-04-03 | 1990-10-04 | Teldix Gmbh | Grundkoerper fuer einen laserkreisel |
| DE3918049A1 (de) * | 1989-06-02 | 1990-12-13 | Honeywell Regelsysteme Gmbh | Ringlaserkreisel mit drehschwingeinrichtung |
| US5074664A (en) * | 1991-01-11 | 1991-12-24 | Litton Systems Inc. | Computer generated cavity length control with automatic gain control for ring laser gyros |
| US8259302B2 (en) | 2010-07-30 | 2012-09-04 | Honeywell International Inc. | Variable path length control modulation frequency |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1585018A (de) * | 1968-05-06 | 1970-01-09 | ||
| US4152071A (en) * | 1976-08-02 | 1979-05-01 | Honeywell Inc. | Control apparatus |
| US4115004A (en) * | 1976-11-15 | 1978-09-19 | Litton Systems, Inc. | Counterbalanced oscillating ring laser gyro |
-
1980
- 1980-09-29 IL IL61156A patent/IL61156A/xx not_active IP Right Cessation
- 1980-10-02 CA CA000361575A patent/CA1168740A/en not_active Expired
- 1980-10-22 IT IT49966/80A patent/IT1146216B/it active
- 1980-10-24 DE DE19803040202 patent/DE3040202A1/de active Granted
- 1980-11-03 SE SE8007703A patent/SE448576B/sv not_active IP Right Cessation
- 1980-11-04 FR FR8023534A patent/FR2469025A1/fr active Granted
- 1980-11-04 GB GB8035399A patent/GB2062950B/en not_active Expired
- 1980-11-05 JP JP55155745A patent/JPS5933994B2/ja not_active Expired
- 1980-11-05 CH CH8225/80A patent/CH652245A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8007703L (sv) | 1981-05-06 |
| CH652245A5 (de) | 1985-10-31 |
| CA1168740A (en) | 1984-06-05 |
| GB2062950B (en) | 1983-10-19 |
| IL61156A (en) | 1983-07-31 |
| JPS5674978A (en) | 1981-06-20 |
| IT1146216B (it) | 1986-11-12 |
| DE3040202C2 (de) | 1992-03-26 |
| GB2062950A (en) | 1981-05-28 |
| DE3040202A1 (de) | 1981-05-14 |
| JPS5933994B2 (ja) | 1984-08-20 |
| FR2469025B1 (de) | 1985-02-01 |
| FR2469025A1 (fr) | 1981-05-08 |
| IT8049966A0 (it) | 1980-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 8007703-5 Effective date: 19900706 Format of ref document f/p: F |