GB1258172A - - Google Patents

Info

Publication number
GB1258172A
GB1258172A GB1258172DA GB1258172A GB 1258172 A GB1258172 A GB 1258172A GB 1258172D A GB1258172D A GB 1258172DA GB 1258172 A GB1258172 A GB 1258172A
Authority
GB
United Kingdom
Prior art keywords
spool
light source
sagnae
bolkow
messerschmitt
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
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 filed Critical
Publication of GB1258172A publication Critical patent/GB1258172A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
    • 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
    • G01C19/721—Details
    • G01C19/722—Details of the mechanical construction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1,258,172. Interferometers. MESSERSCHMITT-BOLKOW-BLOHM G. m. b. H. Oct.24, 1969 [Nov. 6, 1968], No.52345/69. Heading G2J. An interferometer measuring angular velocities by the Sagnae effect comprises a single spool 30 made from optical glass fibres located at the output of a coherent light source 20, and a beamsplitter 21 located between the light source and the spool whereby a part of the beam strikes each end 31, 32 of the spool, the beams then being recombined at the beam-splitter after leaving the spool. The end-faces of the spool are ground to an angle which reduces reflection of extraneous light which may otherwise enter the measuring system.
GB1258172D 1968-11-06 1969-10-24 Expired GB1258172A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681807247 DE1807247B2 (en) 1968-11-06 1968-11-06 ARRANGEMENT FOR MEASURING ROTATION SPEEDS

Publications (1)

Publication Number Publication Date
GB1258172A true GB1258172A (en) 1971-12-22

Family

ID=5712499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258172D Expired GB1258172A (en) 1968-11-06 1969-10-24

Country Status (3)

Country Link
DE (1) DE1807247B2 (en)
FR (1) FR2022712A1 (en)
GB (1) GB1258172A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023180B1 (en) * 1979-07-24 1984-01-18 Thomson-Csf Interferometric device for electric current measurement using fibre optics

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692385A (en) * 1970-06-01 1972-09-19 John George Gievers Rotation sensitive retarder system
US4013365A (en) * 1974-08-29 1977-03-22 The University Of Utah Laser gyroscope
US4120587A (en) * 1975-11-24 1978-10-17 University Of Utah Research Institute Double optical fiber waveguide ring laser gyroscope
US4120588A (en) * 1976-07-12 1978-10-17 Erik Chaum Multiple path configuration for a laser interferometer
DE2901388A1 (en) * 1979-01-15 1980-07-24 Max Planck Gesellschaft METHOD AND ARRANGEMENT FOR MEASURING ROTATIONS BY MEANS OF THE SAGNAC EFFECT
US4138196A (en) * 1977-07-06 1979-02-06 The United States Of America As Represented By The Secretary Of The Army Fiber interferometer rotary motion sensor
CA1136744A (en) * 1978-08-23 1982-11-30 Rockwell International Corporation Interferometer gyro using heterodyne phase detection
US4208128A (en) * 1978-08-23 1980-06-17 Rockwell International Corporation Interferometer gyro using heterodyne phase detection without severe light source coherence requirements
US4299490A (en) * 1978-12-07 1981-11-10 Mcdonnell Douglas Corporation Phase nulling optical gyro
DE2906870A1 (en) * 1979-02-22 1980-09-04 Max Planck Gesellschaft Rotation and revolution rate measurement - using sagnac effect and circularly polarised light faraday phase shift control
US4461574A (en) * 1979-12-18 1984-07-24 The United States Of America As Represented By The Secretary Of The Air Force Environmentally independent fiber optic rotation sensor
DE3332718C2 (en) * 1983-09-10 1994-12-22 Sel Alcatel Ag Device for measuring the speed of rotation
US4735506A (en) * 1985-04-01 1988-04-05 Litton Systems, Inc. Phase nulling optical gyroscope
US4997282A (en) * 1986-09-19 1991-03-05 Litton Systems, Inc. Dual fiber optic gyroscope
US4842358A (en) * 1987-02-20 1989-06-27 Litton Systems, Inc. Apparatus and method for optical signal source stabilization
US4915503A (en) * 1987-09-01 1990-04-10 Litton Systems, Inc. Fiber optic gyroscope with improved bias stability and repeatability and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023180B1 (en) * 1979-07-24 1984-01-18 Thomson-Csf Interferometric device for electric current measurement using fibre optics

Also Published As

Publication number Publication date
DE1807247B2 (en) 1971-09-16
FR2022712A1 (en) 1970-08-07
DE1807247A1 (en) 1970-05-27

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Legal Events

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