JPS577179A - Laser gyro using ring laser - Google Patents

Laser gyro using ring laser

Info

Publication number
JPS577179A
JPS577179A JP8164780A JP8164780A JPS577179A JP S577179 A JPS577179 A JP S577179A JP 8164780 A JP8164780 A JP 8164780A JP 8164780 A JP8164780 A JP 8164780A JP S577179 A JPS577179 A JP S577179A
Authority
JP
Japan
Prior art keywords
laser
omega
traveling wave
frequency
gyro
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
JP8164780A
Other languages
Japanese (ja)
Other versions
JPS58195B2 (en
Inventor
Minoru Takizawa
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.)
National Aerospace Laboratory of Japan
Original Assignee
National Aerospace Laboratory of Japan
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 National Aerospace Laboratory of Japan filed Critical National Aerospace Laboratory of Japan
Priority to JP8164780A priority Critical patent/JPS58195B2/en
Publication of JPS577179A publication Critical patent/JPS577179A/en
Publication of JPS58195B2 publication Critical patent/JPS58195B2/en
Expired 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

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)

Abstract

PURPOSE:To eliminate the dead region around the angular velocity of a laser gyro omega=0 by detecting a one-way traveling wave ring laser rotating with an input axis which is a detected substance and the output beat frequency of a reference linear laser. CONSTITUTION:The frequency of laser light L2 takes a constant value depending on closed optical path length if a normal passing the center of the closed optical path surface of a one-way traveling wave ring laser URL is regarded as a sensitivity axis. In the angular velocity omega of the sensitivity axis, the frequency varies in directly proportional to omega by Doppler effect. When the modulated light L2 and laser light L3 from a reference linear laser RLL not sensing omega are interfered by combining them as the same directional traveling wave through an output read device ROD, interference fringe is generated by heterodyne effect and the fringe moves by a difference between the frequencies of L2 and L3, namely, by the velosity which is proportional to those beat frequencies. Therefore, the laser gyro recognizes omega by measuring its beat frequency.
JP8164780A 1980-06-17 1980-06-17 Laser gyroscope using ring laser Expired JPS58195B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8164780A JPS58195B2 (en) 1980-06-17 1980-06-17 Laser gyroscope using ring laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8164780A JPS58195B2 (en) 1980-06-17 1980-06-17 Laser gyroscope using ring laser

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP57039070A Division JPS5842635B2 (en) 1982-03-12 1982-03-12 Laser Shilo using ring laser

Publications (2)

Publication Number Publication Date
JPS577179A true JPS577179A (en) 1982-01-14
JPS58195B2 JPS58195B2 (en) 1983-01-05

Family

ID=13752123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8164780A Expired JPS58195B2 (en) 1980-06-17 1980-06-17 Laser gyroscope using ring laser

Country Status (1)

Country Link
JP (1) JPS58195B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57212260A (en) * 1981-06-08 1982-12-27 Clorox Co Dye stable and suspensible in hypochlorite solution
JPS59151017A (en) * 1982-12-09 1984-08-29 リトン　システムズ，インコーポレーテッド Dither control device and method for ring laser angle turn sensor
US9468120B2 (en) 2013-11-26 2016-10-11 Delta Electronics (Shanghai) Co., Ltd. Housing, bobbin, and electronic device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57212260A (en) * 1981-06-08 1982-12-27 Clorox Co Dye stable and suspensible in hypochlorite solution
JPH0471108B2 (en) * 1981-06-08 1992-11-12 Clorox Co
JPS59151017A (en) * 1982-12-09 1984-08-29 リトン　システムズ，インコーポレーテッド Dither control device and method for ring laser angle turn sensor
US9468120B2 (en) 2013-11-26 2016-10-11 Delta Electronics (Shanghai) Co., Ltd. Housing, bobbin, and electronic device

Also Published As

Publication number Publication date
JPS58195B2 (en) 1983-01-05

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