CA1072665A - Gyroscope au laser - Google Patents

Gyroscope au laser

Info

Publication number: CA1072665A
Authority: CA; Canada
Prior art keywords: beams; laser; frequency; ring; closed
Prior art date: 1976-05-06
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

CA277,852A

Other languages

English (en)

Inventor

Shaoul Ezekiel

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.)

Massachusetts Institute of Technology

Original Assignee

Massachusetts Institute of Technology

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.)

1976-05-06

Filing date

1977-05-06

Publication date

1980-02-26

1976-05-06 Priority claimed from US05/683,982 external-priority patent/US4135822A/en

1977-05-06 Application filed by Massachusetts Institute of Technology filed Critical Massachusetts Institute of Technology

1980-02-26 Application granted granted Critical

1980-02-26 Publication of CA1072665A publication Critical patent/CA1072665A/fr

Status Expired legal-status Critical Current

Links

230000005670 electromagnetic radiation Effects 0.000 claims abstract 9
230000008859 change Effects 0.000 claims description 9
238000000034 method Methods 0.000 claims description 9
230000008569 process Effects 0.000 claims description 7
239000013307 optical fiber Substances 0.000 claims description 6
230000004044 response Effects 0.000 claims description 3
239000004065 semiconductor Substances 0.000 claims description 3
238000012544 monitoring process Methods 0.000 claims 4
241000269627 Amphiuma means Species 0.000 claims 1
239000013078 crystal Substances 0.000 description 28
230000035559 beat frequency Effects 0.000 description 9
230000000694 effects Effects 0.000 description 9
230000003287 optical effect Effects 0.000 description 4
230000008878 coupling Effects 0.000 description 3
238000010168 coupling process Methods 0.000 description 3
238000005859 coupling reaction Methods 0.000 description 3
239000000835 fiber Substances 0.000 description 3
JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
229910001218 Gallium arsenide Inorganic materials 0.000 description 2
230000001427 coherent effect Effects 0.000 description 2
238000001514 detection method Methods 0.000 description 2
239000000463 material Substances 0.000 description 2
230000010355 oscillation Effects 0.000 description 2
239000007787 solid Substances 0.000 description 2
230000002411 adverse Effects 0.000 description 1
230000005540 biological transmission Effects 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
230000010354 integration Effects 0.000 description 1
238000005259 measurement Methods 0.000 description 1
230000010287 polarization Effects 0.000 description 1
230000003405 preventing effect Effects 0.000 description 1
230000001105 regulatory effect Effects 0.000 description 1
239000010979 ruby Substances 0.000 description 1
229910001750 ruby Inorganic materials 0.000 description 1
230000035945 sensitivity Effects 0.000 description 1
230000006641 stabilisation Effects 0.000 description 1
238000011105 stabilization Methods 0.000 description 1
230000002459 sustained effect Effects 0.000 description 1
230000001360 synchronised effect Effects 0.000 description 1

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
- G01C19/727—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 using a passive ring resonator

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)
Gyroscopes (AREA)

CA277,852A 1976-05-06 1977-05-06 Gyroscope au laser Expired CA1072665A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/683,982 US4135822A (en)	1976-01-19	1976-05-06	Laser gyroscope

Publications (1)

Publication Number	Publication Date
CA1072665A true CA1072665A (fr)	1980-02-26

Family

ID=24746237

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA277,852A Expired CA1072665A (fr)	1976-05-06	1977-05-06	Gyroscope au laser

Country Status (5)

Country	Link
CA (1)	CA1072665A (fr)
DE (1)	DE2720256A1 (fr)
FR (1)	FR2350583A1 (fr)
GB (1)	GB1576941A (fr)
SE (1)	SE7705329L (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4208128A (en) *	1978-08-23	1980-06-17	Rockwell International Corporation	Interferometer gyro using heterodyne phase detection without severe light source coherence requirements
CA1136744A (fr) *	1978-08-23	1982-11-30	Rockwell International Corporation	Gyroscope interferometrique a detection de phase heterodyne
US4299490A (en) *	1978-12-07	1981-11-10	Mcdonnell Douglas Corporation	Phase nulling optical gyro
DE2934794A1 (de) *	1979-08-29	1981-03-19	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Verfahren zur messung absoluter drehungen und anordnung zur durchfuehrung des verfahrens
DE3438184A1 (de) *	1984-10-18	1986-04-24	Bodenseewerk Gerätetechnik GmbH, 7770 Überlingen	Einrichtung zur messung von drehgeschwindigkeiten
US4661964A (en) *	1985-10-02	1987-04-28	Northrop Corporation	Resonant waveguide laser gyro with a switched source
DE3928715C2 (de) *	1989-08-30	1993-12-02	Deutsche Aerospace	Faserkreisel
DE4407348A1 (de) *	1994-03-05	1995-09-07	Bodenseewerk Geraetetech	Brillouin-Ringlaserkreisel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3332314A (en) *	1963-04-08	1967-07-25	Kollsman Instr Corp	Optical interferometric navigational instrument
US3373650A (en) *	1965-04-02	1968-03-19	Honeywell Inc	Laser angular rate sensor
US3627422A (en) *	1965-06-21	1971-12-14	Varian Associates	Means for avoiding locking in ring lasers
US3890047A (en) *	1969-02-25	1975-06-17	United Aircraft Corp	Differential laser gyro employing reflection polarization anisotropy
FR2271542A1 (en) *	1973-12-27	1975-12-12	Minisini Pierre	Rotation measuring ring laser rate gyroscope - has two electro-optics crystals and two sensors for two laser beams
US4013365A (en) *	1974-08-29	1977-03-22	The University Of Utah	Laser gyroscope

1977
- 1977-05-05 FR FR7713785A patent/FR2350583A1/fr active Granted
- 1977-05-05 DE DE19772720256 patent/DE2720256A1/de not_active Withdrawn
- 1977-05-06 GB GB1904277A patent/GB1576941A/en not_active Expired
- 1977-05-06 CA CA277,852A patent/CA1072665A/fr not_active Expired
- 1977-05-06 SE SE7705329A patent/SE7705329L/ not_active Application Discontinuation

Also Published As

Publication number	Publication date
GB1576941A (en)	1980-10-15
SE7705329L (sv)	1977-11-07
DE2720256A1 (de)	1977-11-17
FR2350583B1 (fr)	1983-01-14
FR2350583A1 (fr)	1977-12-02

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Legal Events

Date	Code	Title	Description
1997-02-26	MKEX	Expiry