Fiber optic gyros from research to production

Pavlath, G. A.

doi:10.1117/12.2228562

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2016

2023

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Cited by 6 publications

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“…Northrop-Grumman (avec sa filiale allemande NG Litef) domine largement le marché du gyrofibre avec un contrôle de 50 %, mais surtout sur les moyennes performances. Sa centrale LN 200 tactique (donc au deg/h) s'est vendue à 30 000 exemplaires [10]. Le leader incontesté de l'inertiel est Honeywell mais, archi-dominant en gyrolaser (75 % du marché), il ne propose le gyrofibre que pour les très hautes performances [6].…”

Section: Les Grands Acteurs Du Domaineunclassified

Comprendre et apprécier le gyrofibre : le gyro aux performances ultimes ?

Lefèvre

2016

Photoniques

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Section: Les Grands Acteurs Du Domaineunclassified

Comprendre et apprécier le gyrofibre : le gyro aux performances ultimes ?

Lefèvre

2016

Photoniques

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Dual-polarization interferometric fiber optic gyroscope with Shupe effect compensation

Cao

Zhu

Shi

et al. 2023

Applied Physics Letters

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Dual-polarization (DP) interferometric fiber optic gyroscope (IFOG) has been studied for over a decade, which has important applications in inertial navigation and rotational seismology. Currently, the Shupe effect is an important factor degrading the accuracy of the DP IFOG. Here, a dual-quadrupolar winding pattern is proposed to compensate for the Shupe effect. The finite-element simulation experiments verify that the phase shifts induced by the Shupe effect in two polarizations are almost reversed and well compensated. Static laboratory test results show that, in this configuration, the angle random walk is reduced 10-fold to 7.1×10−5 °/h, while the bias instability is reduced ninefold to 1.7×10−4 °/h. Moreover, a 3-h temperature variation experiment is carried out. The results show that, compared with the original output, the net rotation rate errors originating from the Shupe effect are effectively compensated and the temperature drift is reduced by 13 times. To summarize, the dual-quadrupolar-wound method is a valid approach to compensate for the Shupe effect, and the temperature adaptability of this DP configuration is greatly enhanced.

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IFOG Based on Rhombic Optical Path Difference Bias Configuration for High-Frequency Angular Vibration Measurement

Jing

Liu

et al. 2022

IEEE Sensors J.

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Fiber optic gyros from research to production

Cited by 6 publications

References 6 publications

Comprendre et apprécier le gyrofibre : le gyro aux performances ultimes ?

Comprendre et apprécier le gyrofibre : le gyro aux performances ultimes ?

Dual-polarization interferometric fiber optic gyroscope with Shupe effect compensation

IFOG Based on Rhombic Optical Path Difference Bias Configuration for High-Frequency Angular Vibration Measurement

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