NO942621L - Modulasjons-feilreduksjon i fiberoptisk gyroskop - Google Patents
Modulasjons-feilreduksjon i fiberoptisk gyroskopInfo
- Publication number
- NO942621L NO942621L NO942621A NO942621A NO942621L NO 942621 L NO942621 L NO 942621L NO 942621 A NO942621 A NO 942621A NO 942621 A NO942621 A NO 942621A NO 942621 L NO942621 L NO 942621L
- Authority
- NO
- Norway
- Prior art keywords
- modulator
- fiber optic
- optic gyroscope
- error reduction
- modulation error
- Prior art date
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
- G01C19/72—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
En feilstyreinnretning for en optisk fiberrotasjons-føler som har elektromagnetiske bølger som forplanter seg i motsatte retninger passerende gjennom en optisk, fase for-modulator (19) som betjenes av en fasemodul-sjonsgenerator (20), der begge disse kan bidra til andre harmonisk forvrengning som resulterer i feil i følerens utgangssignal som styres. Styring av denne optiske, fase for-modulators (19) bidrag for en modulator som har et piezoelektrisk legeme (30) ompakket med en optisk fiberdel (40), oppnås ved å montere legemet mellom lagene (33, 35) som har ulineaer stivhet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/821,030 US5289258A (en) | 1992-01-15 | 1992-01-15 | Fiber optic gyroscope modulation error reduction |
PCT/US1993/000717 WO1993014379A1 (en) | 1992-01-15 | 1993-01-15 | Fiber optic gyroscope modulation error reduction |
Publications (2)
Publication Number | Publication Date |
---|---|
NO942621D0 NO942621D0 (no) | 1994-07-12 |
NO942621L true NO942621L (no) | 1994-09-13 |
Family
ID=25232326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO942621A NO942621L (no) | 1992-01-15 | 1994-07-12 | Modulasjons-feilreduksjon i fiberoptisk gyroskop |
Country Status (12)
Country | Link |
---|---|
US (1) | US5289258A (no) |
EP (1) | EP0621943B1 (no) |
JP (1) | JP2893484B2 (no) |
KR (1) | KR940703995A (no) |
AU (1) | AU3594593A (no) |
BR (1) | BR9305685A (no) |
CA (1) | CA2114149C (no) |
DE (1) | DE69302086T2 (no) |
FI (1) | FI943336A0 (no) |
NO (1) | NO942621L (no) |
RU (1) | RU94036009A (no) |
WO (1) | WO1993014379A1 (no) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5448992A (en) * | 1992-12-10 | 1995-09-12 | Sunshine Medical Instruments, Inc. | Method and apparatus for non-invasive phase sensitive measurement of blood glucose concentration |
US5398681A (en) * | 1992-12-10 | 1995-03-21 | Sunshine Medical Instruments, Inc. | Pocket-type instrument for non-invasive measurement of blood glucose concentration |
JPH07506039A (ja) * | 1992-12-10 | 1995-07-06 | サンシャイン メディカル インスツルメンツ インコーポレイテッド | 非侵入血糖測定 |
US5457532A (en) * | 1994-05-31 | 1995-10-10 | Honeywell Inc. | Harmonic phase modulation error reducer |
US6563589B1 (en) | 1996-04-19 | 2003-05-13 | Kvh Industries, Inc. | Reduced minimum configuration fiber optic current sensor |
US5739944A (en) * | 1996-10-28 | 1998-04-14 | Kvh Industries, Inc. | Support system for resonating element of phase modulator |
US6539134B1 (en) | 1999-02-11 | 2003-03-25 | Kvh Industries, Inc. | Polarization transformer |
US6891622B2 (en) | 1999-02-11 | 2005-05-10 | Kvh Industries, Inc. | Current sensor |
US6370289B1 (en) | 2000-01-12 | 2002-04-09 | Kvh Industries, Inc. | Apparatus and method for electronic RIN reduction in fiber-optic sensors |
AU2001255167A1 (en) | 2000-02-28 | 2001-09-03 | Kvh Industries, Inc. | Faraday-effect current sensor with improved vibration response |
US6594020B2 (en) | 2000-07-13 | 2003-07-15 | Kvh Industries, Inc | Method for controlling fiber optic sensor scale factor using amplitude modulation |
US7120323B2 (en) * | 2000-08-02 | 2006-10-10 | Kvh Industries, Inc. | Reduction of linear birefringence in circular-cored single-mode fiber |
US6707558B2 (en) | 2000-08-02 | 2004-03-16 | Kvh Industries, Inc. | Decreasing the effects of linear birefringence in a fiber-optic sensor by use of Berry's topological phase |
US6836334B2 (en) * | 2001-10-31 | 2004-12-28 | Kvh Industries, Inc. | Angle random walk (ARW) noise reduction in fiber optic sensors using an optical amplifier |
US7242991B2 (en) * | 2002-04-15 | 2007-07-10 | Invensys Systems, Inc. | Workflow control configurator for use with process, factory-floor, environmental, computer aided manufacturing-based or other control system |
US6763153B2 (en) | 2002-04-17 | 2004-07-13 | Kvh Industries, Inc. | Apparatus and method for electronic RIN reduction in fiber-optic sensors utilizing filter with group delay |
US7460241B2 (en) * | 2005-11-30 | 2008-12-02 | Honeywell International, Inc. | Fiber optic sensor coil including a restraining ring and method of forming |
US7872758B2 (en) * | 2007-01-22 | 2011-01-18 | The Charles Stark Draper Laboratory, Inc. | Determining and compensating for modulator dynamics in interferometric fiber-optic gyroscopes |
US7817284B2 (en) * | 2007-08-08 | 2010-10-19 | The Charles Stark Draper Laboratory, Inc. | Interferometric fiber optic gyroscope with off-frequency modulation signals |
US8661898B2 (en) * | 2008-10-14 | 2014-03-04 | Watson Industries, Inc. | Vibrating structural gyroscope with quadrature control |
US7869052B2 (en) * | 2009-06-05 | 2011-01-11 | Honeywell International Inc. | Method and amplifying stage for suppressing modulation distortion rate sensing errors in a resonator fiber optic gyroscope |
US8223341B2 (en) | 2010-05-28 | 2012-07-17 | Honeywell International Inc. | System and method for enhancing signal-to-noise ratio of a resonator fiber optic gyroscope |
US8213019B2 (en) | 2010-09-07 | 2012-07-03 | Honeywell International Inc. | RFOG with optical heterodyning for optical signal discrimination |
US8717575B2 (en) | 2011-08-17 | 2014-05-06 | Honeywell International Inc. | Systems and methods for environmentally insensitive high-performance fiber-optic gyroscopes |
US8908187B2 (en) | 2011-11-02 | 2014-12-09 | Honeywell International Inc. | System and method for reducing errors in a resonator fiber optic gyroscope |
US8947671B2 (en) | 2013-02-22 | 2015-02-03 | Honeywell International Inc. | Method and system for detecting optical ring resonator resonance frequencies and free spectral range to reduce the number of lasers in a resonator fiber optic gyroscope |
US9410806B2 (en) | 2013-08-26 | 2016-08-09 | Robert Bosch Gmbh | System and method for gyroscope zero-rate-offset drift reduction through demodulation phase error correction |
US9001336B1 (en) | 2013-10-07 | 2015-04-07 | Honeywell International Inc. | Methods and apparatus of tracking/locking resonator free spectral range and its application in resonator fiber optic gyroscope |
US11181374B2 (en) | 2020-02-24 | 2021-11-23 | Honeywell International Inc. | Gyroscope with reduced bias errors due to resonance asymmetries |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4637722A (en) * | 1983-04-25 | 1987-01-20 | The Board Of Trustees Of The Leland Stanford Junior University | Fiber optical rotation sensor with extended dynamic range |
US4796993A (en) * | 1987-04-13 | 1989-01-10 | Hitachi, Ltd. | Phase modulation type fiber optic gyroscope |
GB2221999B (en) * | 1988-08-16 | 1992-09-16 | Plessey Co Plc | Optical phase modulator |
US5148236A (en) * | 1990-06-18 | 1992-09-15 | Honeywell Inc. | Demodulation reference signal source |
JPH04148823A (ja) * | 1990-10-11 | 1992-05-21 | Matsushita Electric Ind Co Ltd | 光ファイバジャイロ |
-
1992
- 1992-01-15 US US07/821,030 patent/US5289258A/en not_active Expired - Lifetime
-
1993
- 1993-01-15 DE DE69302086T patent/DE69302086T2/de not_active Expired - Lifetime
- 1993-01-15 BR BR9305685A patent/BR9305685A/pt not_active Application Discontinuation
- 1993-01-15 AU AU35945/93A patent/AU3594593A/en not_active Abandoned
- 1993-01-15 JP JP5512750A patent/JP2893484B2/ja not_active Expired - Fee Related
- 1993-01-15 RU RU94036009/28A patent/RU94036009A/ru unknown
- 1993-01-15 EP EP93904661A patent/EP0621943B1/en not_active Expired - Lifetime
- 1993-01-15 CA CA002114149A patent/CA2114149C/en not_active Expired - Fee Related
- 1993-01-15 KR KR1019940702454A patent/KR940703995A/ko not_active Application Discontinuation
- 1993-01-15 WO PCT/US1993/000717 patent/WO1993014379A1/en active IP Right Grant
-
1994
- 1994-07-12 NO NO942621A patent/NO942621L/no unknown
- 1994-07-13 FI FI943336A patent/FI943336A0/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
RU94036009A (ru) | 1997-04-20 |
DE69302086D1 (de) | 1996-05-09 |
NO942621D0 (no) | 1994-07-12 |
CA2114149A1 (en) | 1993-07-22 |
WO1993014379A1 (en) | 1993-07-22 |
EP0621943B1 (en) | 1996-04-03 |
BR9305685A (pt) | 1996-12-24 |
FI943336A (fi) | 1994-07-13 |
EP0621943A1 (en) | 1994-11-02 |
DE69302086T2 (de) | 1996-09-05 |
JPH07503070A (ja) | 1995-03-30 |
US5289258A (en) | 1994-02-22 |
CA2114149C (en) | 2001-11-20 |
JP2893484B2 (ja) | 1999-05-24 |
AU3594593A (en) | 1993-08-03 |
KR940703995A (ko) | 1994-12-12 |
FI943336A0 (fi) | 1994-07-13 |
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