DE4034664A1 - Faseroptisches sagnac-interferometer zur drehratenmessung - Google Patents

Faseroptisches sagnac-interferometer zur drehratenmessung

Info

Publication number
DE4034664A1
DE4034664A1 DE4034664A DE4034664A DE4034664A1 DE 4034664 A1 DE4034664 A1 DE 4034664A1 DE 4034664 A DE4034664 A DE 4034664A DE 4034664 A DE4034664 A DE 4034664A DE 4034664 A1 DE4034664 A1 DE 4034664A1
Authority
DE
Germany
Prior art keywords
signal
phase
period
output
modulation
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.)
Granted
Application number
DE4034664A
Other languages
German (de)
English (en)
Other versions
DE4034664C2 (https=
Inventor
Peter Dipl Ing Groellmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northrop Grumman Litef GmbH
Original Assignee
Litef GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Litef GmbH filed Critical Litef GmbH
Priority to DE4034664A priority Critical patent/DE4034664A1/de
Priority to EP91115838A priority patent/EP0483501B1/de
Priority to DE59103800T priority patent/DE59103800D1/de
Priority to US07/781,703 priority patent/US5268740A/en
Priority to JP3284691A priority patent/JPH0735976B2/ja
Publication of DE4034664A1 publication Critical patent/DE4034664A1/de
Application granted granted Critical
Publication of DE4034664C2 publication Critical patent/DE4034664C2/de
Granted legal-status Critical Current

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
    • G01C19/726—Phase nulling gyrometers, i.e. compensating the Sagnac phase shift in a closed loop system

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Gyroscopes (AREA)
DE4034664A 1990-10-31 1990-10-31 Faseroptisches sagnac-interferometer zur drehratenmessung Granted DE4034664A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4034664A DE4034664A1 (de) 1990-10-31 1990-10-31 Faseroptisches sagnac-interferometer zur drehratenmessung
EP91115838A EP0483501B1 (de) 1990-10-31 1991-09-18 Faseroptisches Sagnac-Interferometer zur Drehratenmessung
DE59103800T DE59103800D1 (de) 1990-10-31 1991-09-18 Faseroptisches Sagnac-Interferometer zur Drehratenmessung.
US07/781,703 US5268740A (en) 1990-10-31 1991-10-22 Fiber optic Sagnac interferometer with carrier frequency reduced output for measuring a rate of rotation
JP3284691A JPH0735976B2 (ja) 1990-10-31 1991-10-30 回転速度を測定するためのファイバ・オプティック・サニャック干渉計

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4034664A DE4034664A1 (de) 1990-10-31 1990-10-31 Faseroptisches sagnac-interferometer zur drehratenmessung

Publications (2)

Publication Number Publication Date
DE4034664A1 true DE4034664A1 (de) 1992-05-07
DE4034664C2 DE4034664C2 (https=) 1992-08-27

Family

ID=6417403

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4034664A Granted DE4034664A1 (de) 1990-10-31 1990-10-31 Faseroptisches sagnac-interferometer zur drehratenmessung
DE59103800T Expired - Fee Related DE59103800D1 (de) 1990-10-31 1991-09-18 Faseroptisches Sagnac-Interferometer zur Drehratenmessung.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59103800T Expired - Fee Related DE59103800D1 (de) 1990-10-31 1991-09-18 Faseroptisches Sagnac-Interferometer zur Drehratenmessung.

Country Status (4)

Country Link
US (1) US5268740A (https=)
EP (1) EP0483501B1 (https=)
JP (1) JPH0735976B2 (https=)
DE (2) DE4034664A1 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530545A (en) * 1994-07-29 1996-06-25 Litton Systems, Inc. Method for reducing random walk in fiber optic gyroscopes
US5576534A (en) * 1994-07-29 1996-11-19 Litton Systems, Inc. Error reduction by quasi non-multiplexed signal processing in a multiplexed fiber optic rotation sensor loop
US5504580A (en) * 1994-11-30 1996-04-02 Alliedsignal Inc. Tuned integrated optic modulator on a fiber optic gyroscope
US5850286A (en) * 1997-05-12 1998-12-15 Litton Systems, Inc. Fiber optic gyro with optical intensity spike suppression
US5883716A (en) * 1997-07-15 1999-03-16 Litton Systems, Inc. Rate control loop for fiber optic gyroscope
US6657729B2 (en) * 2000-03-27 2003-12-02 Honeywell International Inc. Dithering system and method for a laser diode light source for an optical gyroscope
DE102009035386B4 (de) * 2009-07-30 2011-12-15 Cochlear Ltd. Hörhilfeimplantat
EP3387382A1 (en) 2015-12-10 2018-10-17 Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego Method of measurement and apparatus for measurement of amplitude ratio of two first harmonics of the signal obtained from sagnac system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705399A (en) * 1984-06-14 1987-11-10 Thomson-Csf Device for measuring a nonreciprocal phase shift produced in a closed-loop interferometer
EP0294915A2 (en) * 1987-03-27 1988-12-14 Litton Systems, Inc. Rotation rate nulling servo and method for a fiber optic rotation sensor
EP0400197A1 (de) * 1989-06-02 1990-12-05 LITEF GmbH Verfahren und Einrichtung zur Demodulation des Drehratensignals eines Faserkreisels
EP0436052A1 (de) * 1990-01-03 1991-07-10 LITEF GmbH Faseroptisches Sagnac-Interferometer mit digitaler Phasenrampenrückstellung zur Drehratenmessung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140110A1 (de) * 1981-10-09 1983-04-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "verfahren und anordnung zur messung absoluter drehungen"
DE3204810A1 (de) * 1982-02-11 1983-08-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur messung absoluter drehungen
GB2202325B (en) * 1987-03-19 1992-02-05 Stc Plc Fibre optic gyro

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705399A (en) * 1984-06-14 1987-11-10 Thomson-Csf Device for measuring a nonreciprocal phase shift produced in a closed-loop interferometer
EP0294915A2 (en) * 1987-03-27 1988-12-14 Litton Systems, Inc. Rotation rate nulling servo and method for a fiber optic rotation sensor
EP0400197A1 (de) * 1989-06-02 1990-12-05 LITEF GmbH Verfahren und Einrichtung zur Demodulation des Drehratensignals eines Faserkreisels
EP0436052A1 (de) * 1990-01-03 1991-07-10 LITEF GmbH Faseroptisches Sagnac-Interferometer mit digitaler Phasenrampenrückstellung zur Drehratenmessung

Also Published As

Publication number Publication date
US5268740A (en) 1993-12-07
EP0483501A3 (de) 1992-12-30
EP0483501A2 (de) 1992-05-06
JPH0735976B2 (ja) 1995-04-19
EP0483501B1 (de) 1994-12-07
DE59103800D1 (de) 1995-01-19
JPH0518763A (ja) 1993-01-26
DE4034664C2 (https=) 1992-08-27

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee