GB1210280A - A method for measuring angular velocities by use of the sagnac effect - Google Patents

A method for measuring angular velocities by use of the sagnac effect

Info

Publication number
GB1210280A
GB1210280A GB5283468A GB5283468A GB1210280A GB 1210280 A GB1210280 A GB 1210280A GB 5283468 A GB5283468 A GB 5283468A GB 5283468 A GB5283468 A GB 5283468A GB 1210280 A GB1210280 A GB 1210280A
Authority
GB
United Kingdom
Prior art keywords
light
nov
sense
measuring
measured
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
Application number
GB5283468A
Inventor
Bernd Eichenauer
Klaus-Joachim Brauser
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.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Publication of GB1210280A publication Critical patent/GB1210280A/en
Expired 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

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

1,210,280. Interferometry. MESSERSCHMITT-BOLKOW-BLOHM G.m.b.H. Nov. 7, 1968 [Nov. 20, 1967], No. 52834/68. Heading G2J. A method for measuring angular velocities using the Sagnac effect comprises artificially enlarging the effective area round which two light beams circulate in opposite directions relatively to a rotating support, the angular velocity of which is to be measured, by light beam deflecting devices or conducting devices or both, arranged so that light circulates round the area a predetermined number of times prior to measuring the phase difference of the two beams. The normal single circuit of a Sagnac interferometer is replaced by a pair light conducting glass-fibre helices 10 arranged on a rotating support having a speed vector w, the light from a source 20 being transmitted along one coil in the sense of rotation and along the other coil opposite to the sense of rotation. The phase difference Z due to the difference of transmission time at the outlets 14, 15 is determined interferometically, as at 30. The larger the number of coils in each helix the slower the rotational velocities of the support which can be measured.
GB5283468A 1967-11-20 1968-11-07 A method for measuring angular velocities by use of the sagnac effect Expired GB1210280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1673383 1967-11-20

Publications (1)

Publication Number Publication Date
GB1210280A true GB1210280A (en) 1970-10-28

Family

ID=5686542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5283468A Expired GB1210280A (en) 1967-11-20 1968-11-07 A method for measuring angular velocities by use of the sagnac effect

Country Status (2)

Country Link
FR (1) FR1592633A (en)
GB (1) GB1210280A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241325A (en) * 1989-12-21 1991-08-28 Andrew Corp Fiber optic gyroscope
US5237632A (en) * 1990-12-06 1993-08-17 Gec-Marconi Limited Optical fibre coil assemblies

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431681A1 (en) * 1978-07-21 1980-02-15 Thomson Csf LASER GYROMETER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241325A (en) * 1989-12-21 1991-08-28 Andrew Corp Fiber optic gyroscope
AU629407B2 (en) * 1989-12-21 1992-10-01 Andrew Corporation Fiber optic gyroscope using dual-section, counter-wound coil
US5237632A (en) * 1990-12-06 1993-08-17 Gec-Marconi Limited Optical fibre coil assemblies

Also Published As

Publication number Publication date
FR1592633A (en) 1970-05-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees