SE456277B - Forfarande for forhindrande av fastlasning i ett ringlasergyro samt ringlasergyro - Google Patents

Forfarande for forhindrande av fastlasning i ett ringlasergyro samt ringlasergyro

Info

Publication number: SE456277B
Authority: SE; Sweden
Prior art keywords: mirrors; mirror; corner; triangle; zero
Prior art date: 1981-06-15

Application number

SE8203682A

Other languages

English (en)

Swedish (sv)

Other versions

SE8203682L (sv

Inventor

B H G Ljung

J C Stiles

Original Assignee

Singer Co

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.)

1981-06-15

Filing date

1982-06-14

Publication date

1988-09-19

1982-06-14 Application filed by Singer Co filed Critical Singer Co

1982-12-16 Publication of SE8203682L publication Critical patent/SE8203682L/

1988-09-19 Publication of SE456277B publication Critical patent/SE456277B/sv

Links

238000000034 method Methods 0.000 title claims description 9
230000005855 radiation Effects 0.000 claims description 20
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239000000463 material Substances 0.000 description 6
239000013078 crystal Substances 0.000 description 5
238000010586 diagram Methods 0.000 description 4
238000006073 displacement reaction Methods 0.000 description 4
230000008859 change Effects 0.000 description 3
230000000694 effects Effects 0.000 description 3
238000002789 length control Methods 0.000 description 3
229910052734 helium Inorganic materials 0.000 description 2
239000001307 helium Substances 0.000 description 2
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238000003780 insertion Methods 0.000 description 2
230000037431 insertion Effects 0.000 description 2
239000000203 mixture Substances 0.000 description 2
229910052754 neon Inorganic materials 0.000 description 2
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239000010453 quartz Substances 0.000 description 2
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VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/083—Ring lasers
- 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
- G01C19/70—Lock-in prevention by mechanical means

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Electromagnetism (AREA)
Optics & Photonics (AREA)
Power Engineering (AREA)
General Physics & Mathematics (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Plasma & Fusion (AREA)
Gyroscopes (AREA)
Lasers (AREA)

SE8203682A 1981-06-15 1982-06-14 Forfarande for forhindrande av fastlasning i ett ringlasergyro samt ringlasergyro SE456277B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/274,044 US4410276A (en)	1981-06-15	1981-06-15	Ring laser gyroscope with doppler mirrors

Publications (2)

Publication Number	Publication Date
SE8203682L SE8203682L (sv)	1982-12-16
SE456277B true SE456277B (sv)	1988-09-19

Family

ID=23046536

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8203682A SE456277B (sv)	1981-06-15	1982-06-14	Forfarande for forhindrande av fastlasning i ett ringlasergyro samt ringlasergyro

Country Status (11)

Country	Link
US (1)	US4410276A (it)
JP (1)	JPS57208187A (it)
AU (1)	AU547717B2 (it)
CA (1)	CA1170344A (it)
DE (1)	DE3222444A1 (it)
FR (1)	FR2507771B1 (it)
GB (1)	GB2100499B (it)
IL (1)	IL65330A0 (it)
IT (1)	IT1152969B (it)
NO (1)	NO821958L (it)
SE (1)	SE456277B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4653919A (en) *	1982-02-08	1987-03-31	Sundstrand Optical Technologies, Inc.	Laser gyro with dithered mirrors and current dither
US5412475A (en) *	1982-08-27	1995-05-02	Raytheon Company	Diagonal pathlength control
DE3320345A1 (de) *	1983-06-04	1984-12-06	Litton Systems, Inc., Beverly Hills, Calif.	Ringlaser-gyroskop
US4592656A (en) *	1983-07-05	1986-06-03	Honeywell, Inc.	Ring laser angular rate sensor with modulated scattered waves
US5357338A (en) *	1983-07-11	1994-10-18	Litton Systems, Inc.	Path length controller with offset bias for a ring laser gyro
US4686683A (en) *	1984-01-09	1987-08-11	Litton Systems, Inc.	Laser angular rate sensor with dithered mirrors
CA1252551A (en) *	1984-01-09	1989-04-11	Litton Systems, Inc.	Laser angular rate sensor with dithered mirrors
JPH0716052B2 (ja) *	1984-06-18	1995-02-22	日本航空電子工業株式会社	リングレ−ザ角速度計
JP2517696Y2 (ja) *	1985-06-05	1996-11-20	日本電気ホームエレクトロニクス株式会社	リングレ−ザジヤイロ
US4824253A (en) *	1987-04-08	1989-04-25	Litton Systems, Inc.	Glass driver for laser mirror
US5137358A (en) *	1991-02-05	1992-08-11	Northrop Corporation	Ring laser gyro having two magnetic mirrors
US5359413A (en) *	1992-01-13	1994-10-25	Kearfott Guidance And Navigation Corporation	System for substantially eleminating lock-in in a ring laser gyroscope
US5420685A (en) *	1992-12-18	1995-05-30	Honeywell Inc.	Electrostatic path length control transducer
US5416583A (en) *	1993-07-30	1995-05-16	Kearfott Guidance & Navigation Corporation	Quantum well bias mirror for phase modulation in a ring laser gyroscope
US5469258A (en) *	1993-11-29	1995-11-21	Allied Signal Inc.	Ring laser gyroscope with tilting mirrors
KR960010566B1 (ko) *	1993-12-30	1996-08-02	한국과학기술연구원	록-인 영역(Look-in Zone)의 폭을 제어할 수 있는 레이저 자이로
EP2761253B1 (en)	2011-09-29	2015-09-09	SI-Ware Systems	Mems based ring laser gyroscope with reduced lock-in
US9651379B2 (en)	2014-11-17	2017-05-16	Honeywell International Inc.	Eliminating ring laser gyro backscatter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3533014A (en) *	1968-06-04	1970-10-06	Massachusetts Inst Technology	Gas ring laser using oscillating radiation scattering sources within the laser cavity
US4152071A (en) *	1976-08-02	1979-05-01	Honeywell Inc.	Control apparatus
CA1085031A (en) *	1976-11-08	1980-09-02	Litton Systems, Inc.	Laser gyro with phased dithered mirrors
FR2414715A1 (fr) *	1978-01-13	1979-08-10	Sfena	Procede d'attenua
US4281930A (en) *	1978-12-18	1981-08-04	Litton Systems, Inc.	Laser gyro with phased dithered mirrors

1981
- 1981-06-15 US US06/274,044 patent/US4410276A/en not_active Expired - Lifetime
1982
- 1982-03-23 IL IL65330A patent/IL65330A0/xx not_active IP Right Cessation
- 1982-03-23 GB GB8208469A patent/GB2100499B/en not_active Expired
- 1982-03-31 CA CA000400295A patent/CA1170344A/en not_active Expired
- 1982-04-28 JP JP57070547A patent/JPS57208187A/ja active Pending
- 1982-06-04 FR FR8209792A patent/FR2507771B1/fr not_active Expired
- 1982-06-11 NO NO821958A patent/NO821958L/no unknown
- 1982-06-11 AU AU84852/82A patent/AU547717B2/en not_active Ceased
- 1982-06-14 SE SE8203682A patent/SE456277B/sv not_active IP Right Cessation
- 1982-06-15 IT IT21862/82A patent/IT1152969B/it active
- 1982-06-15 DE DE19823222444 patent/DE3222444A1/de not_active Withdrawn

Also Published As

Publication number	Publication date
GB2100499A (en)	1982-12-22
IT8221862A0 (it)	1982-06-15
IT1152969B (it)	1987-01-14
AU547717B2 (en)	1985-10-31
CA1170344A (en)	1984-07-03
AU8485282A (en)	1982-12-23
DE3222444A1 (de)	1982-12-30
US4410276A (en)	1983-10-18
NO821958L (no)	1982-12-16
FR2507771B1 (fr)	1986-07-25
IL65330A0 (en)	1982-05-31
SE8203682L (sv)	1982-12-16
GB2100499B (en)	1985-09-11
FR2507771A1 (fr)	1982-12-17
IT8221862A1 (it)	1983-12-15
JPS57208187A (en)	1982-12-21

Legal Events

Date

Code

Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 8203682-3

Effective date: 19910131

Format of ref document f/p: F

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