FR2271542A1 - Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams - Google Patents

Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams

Info

Publication number
FR2271542A1
FR2271542A1 FR7346452A FR7346452A FR2271542A1 FR 2271542 A1 FR2271542 A1 FR 2271542A1 FR 7346452 A FR7346452 A FR 7346452A FR 7346452 A FR7346452 A FR 7346452A FR 2271542 A1 FR2271542 A1 FR 2271542A1
Authority
FR
France
Prior art keywords
sensors
crystals
electro
laser
optics
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
FR7346452A
Other languages
French (fr)
Other versions
FR2271542B1 (en
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.)
MINISINI PIERRE FR
Original Assignee
MINISINI PIERRE FR
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 MINISINI PIERRE FR filed Critical MINISINI PIERRE FR
Priority to FR7346452A priority Critical patent/FR2271542A1/en
Publication of FR2271542A1 publication Critical patent/FR2271542A1/en
Application granted granted Critical
Publication of FR2271542B1 publication Critical patent/FR2271542B1/fr
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
    • G01C19/66—Ring laser gyrometers
    • G01C19/68—Lock-in prevention

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)
  • Lasers (AREA)

Abstract

The ring laser rate gyroscope is used to measure angular velocity and rotation. It has a laser source (1) producing two laser beams, of the same frequency, which go through two identical electro-optic crystals (2, 3) such as piezoelectric quartz or strontium niobate. The crystals from a voltage generated by a pulse generator (30) and transformed by a circuit (31). When the gyroscope is subjected to an angular velocity, frequency differences due to an effect similar to the Doppler effect are detected by two sensors (4, 5). The signals from the sensors (4, 5) are then modified to obtain the value and the sense of the measured angular velocity.
FR7346452A 1973-12-27 1973-12-27 Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams Granted FR2271542A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7346452A FR2271542A1 (en) 1973-12-27 1973-12-27 Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7346452A FR2271542A1 (en) 1973-12-27 1973-12-27 Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams

Publications (2)

Publication Number Publication Date
FR2271542A1 true FR2271542A1 (en) 1975-12-12
FR2271542B1 FR2271542B1 (en) 1976-10-08

Family

ID=9129731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7346452A Granted FR2271542A1 (en) 1973-12-27 1973-12-27 Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams

Country Status (1)

Country Link
FR (1) FR2271542A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350583A1 (en) * 1976-05-06 1977-12-02 Massachusetts Inst Technology LASER GYROSCOPE
FR2377027A1 (en) * 1977-01-10 1978-08-04 Raytheon Co PERFECTED LASER GYROSCOPE
FR2446482A1 (en) * 1979-01-15 1980-08-08 Max Planck Gesellschaft METHOD AND APPARATUS FOR MEASURING ANGLES AND ROTATION SPEEDS USING OPTICAL FIBER
FR2452086A1 (en) * 1979-03-21 1980-10-17 Singer Co FEEDBACK SYSTEM FOR CONTROLLING LOCKING IN A SPRING SUSPENDED RING LASER GYROSCOPE
EP0030891A1 (en) * 1979-12-14 1981-06-24 Thomson-Csf Method and device for the measurement of the phase shift of the waves in a ring interferometer
EP0106573A2 (en) * 1982-09-29 1984-04-25 British Aerospace Public Limited Company Ring laser readout arrangements
FR2555739A1 (en) * 1980-11-07 1985-05-31 Thomson Csf DEVICE FOR MEASURING A NON-RECIPROCAL PHASE GENERATING IN A RING INTERFEROMETER
US4755057A (en) * 1984-10-02 1988-07-05 Litton Systems, Inc. Path length control method for ring laser gyroscope
US4779985A (en) * 1986-12-22 1988-10-25 Litton Systems, Inc. Dither suspension for ring laser gyroscope and method
US4801206A (en) * 1986-06-04 1989-01-31 Litton Systems, Inc. Simplified ring laser gyroscope dither control and method
US5442442A (en) * 1987-10-28 1995-08-15 Litton Systems, Inc. Ring laser gyroscope scale factor error control apparatus and method control apparatus and method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350583A1 (en) * 1976-05-06 1977-12-02 Massachusetts Inst Technology LASER GYROSCOPE
FR2377027A1 (en) * 1977-01-10 1978-08-04 Raytheon Co PERFECTED LASER GYROSCOPE
FR2446482A1 (en) * 1979-01-15 1980-08-08 Max Planck Gesellschaft METHOD AND APPARATUS FOR MEASURING ANGLES AND ROTATION SPEEDS USING OPTICAL FIBER
FR2452086A1 (en) * 1979-03-21 1980-10-17 Singer Co FEEDBACK SYSTEM FOR CONTROLLING LOCKING IN A SPRING SUSPENDED RING LASER GYROSCOPE
EP0030891A1 (en) * 1979-12-14 1981-06-24 Thomson-Csf Method and device for the measurement of the phase shift of the waves in a ring interferometer
FR2555739A1 (en) * 1980-11-07 1985-05-31 Thomson Csf DEVICE FOR MEASURING A NON-RECIPROCAL PHASE GENERATING IN A RING INTERFEROMETER
US5056919A (en) * 1980-11-07 1991-10-15 Thomson Csf Device for measuring a phase shift which is not reciprocal produced in a ring interferometer
EP0106573A2 (en) * 1982-09-29 1984-04-25 British Aerospace Public Limited Company Ring laser readout arrangements
EP0106573A3 (en) * 1982-09-29 1986-02-12 British Aerospace Public Limited Company Ring laser readout arrangements
US4755057A (en) * 1984-10-02 1988-07-05 Litton Systems, Inc. Path length control method for ring laser gyroscope
US4801206A (en) * 1986-06-04 1989-01-31 Litton Systems, Inc. Simplified ring laser gyroscope dither control and method
US4779985A (en) * 1986-12-22 1988-10-25 Litton Systems, Inc. Dither suspension for ring laser gyroscope and method
US5442442A (en) * 1987-10-28 1995-08-15 Litton Systems, Inc. Ring laser gyroscope scale factor error control apparatus and method control apparatus and method

Also Published As

Publication number Publication date
FR2271542B1 (en) 1976-10-08

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Legal Events

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