GB2227833B - Fibre-optic gyroscopes - Google Patents

Fibre-optic gyroscopes

Info

Publication number
GB2227833B
GB2227833B GB8905452A GB8905452A GB2227833B GB 2227833 B GB2227833 B GB 2227833B GB 8905452 A GB8905452 A GB 8905452A GB 8905452 A GB8905452 A GB 8905452A GB 2227833 B GB2227833 B GB 2227833B
Authority
GB
United Kingdom
Prior art keywords
fibre
optic gyroscopes
gyroscopes
optic
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 - Lifetime
Application number
GB8905452A
Other versions
GB8905452D0 (en
GB2227833A (en
Inventor
Malcolm P Varnham
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.)
BAE Systems PLC
Original Assignee
British Aerospace PLC
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 British Aerospace PLC filed Critical British Aerospace PLC
Publication of GB8905452D0 publication Critical patent/GB8905452D0/en
Publication of GB2227833A publication Critical patent/GB2227833A/en
Application granted granted Critical
Publication of GB2227833B publication Critical patent/GB2227833B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
GB8905452A 1988-03-09 1989-03-09 Fibre-optic gyroscopes Expired - Lifetime GB2227833B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888805622A GB8805622D0 (en) 1988-03-09 1988-03-09 Double demodulation in fibre-optic gyroscope

Publications (3)

Publication Number Publication Date
GB8905452D0 GB8905452D0 (en) 1989-09-13
GB2227833A GB2227833A (en) 1990-08-08
GB2227833B true GB2227833B (en) 1992-09-16

Family

ID=10633132

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888805622A Pending GB8805622D0 (en) 1988-03-09 1988-03-09 Double demodulation in fibre-optic gyroscope
GB8905452A Expired - Lifetime GB2227833B (en) 1988-03-09 1989-03-09 Fibre-optic gyroscopes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888805622A Pending GB8805622D0 (en) 1988-03-09 1988-03-09 Double demodulation in fibre-optic gyroscope

Country Status (1)

Country Link
GB (2) GB8805622D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59103693D1 (en) * 1991-02-11 1995-01-12 Litef Gmbh Sagnac fiber optic interferometer with digital phase modulation for measuring the rotation rate.
CN102901515A (en) * 2012-09-28 2013-01-30 浙江大学 Rapid on-line measuring method for fiber-optic gyroscope transition time
CN109459010B (en) * 2018-12-26 2020-07-14 中国电子科技集团公司第二十六研究所 Novel chopper circuit for optical fiber gyroscope

Also Published As

Publication number Publication date
GB8805622D0 (en) 1988-08-24
GB8905452D0 (en) 1989-09-13
GB2227833A (en) 1990-08-08

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020309