JPS6463871A - Light interference angular velocity meter - Google Patents

Light interference angular velocity meter

Info

Publication number
JPS6463871A
JPS6463871A JP62220759A JP22075987A JPS6463871A JP S6463871 A JPS6463871 A JP S6463871A JP 62220759 A JP62220759 A JP 62220759A JP 22075987 A JP22075987 A JP 22075987A JP S6463871 A JPS6463871 A JP S6463871A
Authority
JP
Japan
Prior art keywords
light
phase modulation
angular velocity
output
scale factor
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
JP62220759A
Other languages
Japanese (ja)
Other versions
JPH0625669B2 (en
Inventor
Kenichi Okada
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.)
Japan Aviation Electronics Industry Ltd
Original Assignee
Japan Aviation Electronics Industry Ltd
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 Japan Aviation Electronics Industry Ltd filed Critical Japan Aviation Electronics Industry Ltd
Priority to JP62220759A priority Critical patent/JPH0625669B2/en
Priority to US07/236,435 priority patent/US4883358A/en
Priority to DE3844745A priority patent/DE3844745C2/de
Priority to FR888811437A priority patent/FR2618545B1/en
Priority to DE3829731A priority patent/DE3829731A1/en
Publication of JPS6463871A publication Critical patent/JPS6463871A/en
Publication of JPH0625669B2 publication Critical patent/JPH0625669B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Gyroscopes (AREA)

Abstract

PURPOSE:To stably hold a scale factor as input and output characteristics, by normally operating the scale factor stabilizing circuit of a light interference angular velocity meter even when a phase modulation level is varied by environmental change. CONSTITUTION:The light from a light supply 11 is distributed by a light distributing coupler 26 and the distributed lights respectively pass through an optical path 16 in clockwise and counterclockwise directions and coupled by the light distributing coupler 26 to interfere with each other to be received by a light receiver 21. At this time, the lights propagating in mutually reverse directions are subjected to phase modulation by a phase modulator 22 and the output due to the synchronous detection of phase modulation frequency f0 and the treble wave 3f0 thereof is added to be outputted as an angular velocity signal through a linearizer 43. The output of an adder 42 and the output due to the synchronous detection of the double frequency 2f0 of the phase modulation frequency are squared and added, and the difference with the reference value from a reference signal generating circuit 36 is negatively fed back to a light supply quantity-of-light control circuit 38 through an integrator 37.
JP62220759A 1987-09-02 1987-09-02 Optical interference gyro Expired - Lifetime JPH0625669B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62220759A JPH0625669B2 (en) 1987-09-02 1987-09-02 Optical interference gyro
US07/236,435 US4883358A (en) 1987-09-02 1988-08-25 Fiber optic gyro stabilized by harmonic components of detected signal
DE3844745A DE3844745C2 (en) 1987-09-02 1988-09-01
FR888811437A FR2618545B1 (en) 1987-09-02 1988-09-01 FIBER OPTIC GYROSCOPE
DE3829731A DE3829731A1 (en) 1987-09-02 1988-09-01 FIBER OPTICAL GYPSY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62220759A JPH0625669B2 (en) 1987-09-02 1987-09-02 Optical interference gyro

Publications (2)

Publication Number Publication Date
JPS6463871A true JPS6463871A (en) 1989-03-09
JPH0625669B2 JPH0625669B2 (en) 1994-04-06

Family

ID=16756100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62220759A Expired - Lifetime JPH0625669B2 (en) 1987-09-02 1987-09-02 Optical interference gyro

Country Status (1)

Country Link
JP (1) JPH0625669B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05312581A (en) * 1992-05-14 1993-11-22 Japan Aviation Electron Ind Ltd Optical interference angular velocity meter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05312581A (en) * 1992-05-14 1993-11-22 Japan Aviation Electron Ind Ltd Optical interference angular velocity meter

Also Published As

Publication number Publication date
JPH0625669B2 (en) 1994-04-06

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