NO880540L - Elektro-optisk innretning for styring av den optiske veilengde i en laservinkelhastighetsfoeler. - Google Patents
Elektro-optisk innretning for styring av den optiske veilengde i en laservinkelhastighetsfoeler.Info
- Publication number
- NO880540L NO880540L NO880540A NO880540A NO880540L NO 880540 L NO880540 L NO 880540L NO 880540 A NO880540 A NO 880540A NO 880540 A NO880540 A NO 880540A NO 880540 L NO880540 L NO 880540L
- Authority
- NO
- Norway
- Prior art keywords
- optical
- output
- electro
- detector
- frequency
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 18
- 238000002789 length control Methods 0.000 claims description 16
- 238000009795 derivation Methods 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000003708 edge detection Methods 0.000 claims 6
- 238000012545 processing Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009966 trimming Methods 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
- G01C19/661—Ring laser gyrometers details
- G01C19/665—Ring laser gyrometers details control of the cavity
-
- 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
- G01C19/662—Ring laser gyrometers details signal readout; dither compensators
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)
- Optical Communication System (AREA)
- Lasers (AREA)
- Gyroscopes (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/013,080 US4781462A (en) | 1987-02-09 | 1987-02-09 | Path length control signal derivation circuit for a laser angular rate sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO880540D0 NO880540D0 (no) | 1988-02-08 |
| NO880540L true NO880540L (no) | 1988-08-10 |
Family
ID=21758209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO880540A NO880540L (no) | 1987-02-09 | 1988-02-08 | Elektro-optisk innretning for styring av den optiske veilengde i en laservinkelhastighetsfoeler. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4781462A (de) |
| EP (1) | EP0285723A3 (de) |
| JP (1) | JPS63224280A (de) |
| AU (1) | AU7943987A (de) |
| NO (1) | NO880540L (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5074664A (en) * | 1991-01-11 | 1991-12-24 | Litton Systems Inc. | Computer generated cavity length control with automatic gain control for ring laser gyros |
| US5450198A (en) * | 1993-10-01 | 1995-09-12 | Honeywell Inc. | Laser gyro microprocessor based smart mode acquisition and high performance mode hopping |
| US5530542A (en) * | 1995-04-19 | 1996-06-25 | Hewlett-Packard Company | Circuit and method for controlling glitches in low intensity signals |
| US7330269B2 (en) | 2005-01-21 | 2008-02-12 | Honeywell International Inc. | Single sensor ring laser gyroscope |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320974A (en) * | 1980-06-30 | 1982-03-23 | The Singer Company | Pathlength controller for a ring laser cyroscope |
| US4551021A (en) * | 1982-03-01 | 1985-11-05 | Honeywell Inc. | Discriminant apparatus for laser gyros |
| US4637723A (en) * | 1982-09-30 | 1987-01-20 | Honeywell Inc. | Discriminant apparatus for ring laser angular rate sensors |
-
1987
- 1987-02-09 US US07/013,080 patent/US4781462A/en not_active Expired - Lifetime
- 1987-09-25 EP EP87308528A patent/EP0285723A3/de not_active Withdrawn
- 1987-10-07 AU AU79439/87A patent/AU7943987A/en not_active Abandoned
- 1987-10-29 JP JP62274633A patent/JPS63224280A/ja active Pending
-
1988
- 1988-02-08 NO NO880540A patent/NO880540L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0285723A2 (de) | 1988-10-12 |
| EP0285723A3 (de) | 1989-07-26 |
| JPS63224280A (ja) | 1988-09-19 |
| US4781462A (en) | 1988-11-01 |
| AU7943987A (en) | 1988-08-11 |
| NO880540D0 (no) | 1988-02-08 |
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