A software-compensation method to orthogonal magnetic field drift in a depolarized fiber-optic gyroscope

Zhang, Dengwei; Zhao, Yuxiang; Zhou, Wen; Fu, Wenlan; Cheng, Long; Shu, Xiaowu; Che, Shuangliang

doi:10.1016/j.ijleo.2013.10.095

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…Numerous achievements have been made out to improve the sensitivity of IFOGs, including software compensation and hardware optimization. Software compensation [14][15][16][17] mainly aims at eliminating the effects of external environmental factors, such as temperature, magnetic field, and vibration. As a result, the environmental adaptability of IFOGs will be improved.…”

Section: Working Principlementioning

confidence: 99%

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A Novel Approach to Double the Sensitivity of Polarization Maintaining Interferometric Fiber Optic Gyroscope

Zhang

Liang

2020

Sensors

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In this paper, a novel optical approach to double the sensitivity to angular rate of interferometric fiber optic gyroscope (IFOG) is proposed. Two fiber polarization combiner/splitters (FPCSs), as the key components, are added in the traditional IFOG light path. The FPCSs are able to either combine two orthogonal polarizations transmitting at two different polarization-maintaining fibers (PMFs) into the two orthogonal axes of one PMF, respectively, or split two polarizations transmitting at the two orthogonal axes of one PMF into two polarizations to transmit at two different PMFs, respectively. Through the specific placement and coupling of these two FPCSs, the incident light can transmit twice along the polarization-maintaining fiber coil (PMFC). The novel approach is verified experimentally and the experimental results show consistency with the theoretical analysis. The proposed approach is able to double the sensitivity of IFOGs and can increase the signal-to-noise ratio (SNR) without increasing the length of PMFC, which is very susceptible to environmental influences and is of great significance in the technical improvement of IFOGs, as well as the miniaturization of IFOGs.

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Section: Working Principlementioning

confidence: 99%

“…Numerous achievements have been made out to improve the sensitivity of IFOGs, including software compensation and hardware optimization. Software compensation [14][15][16][17]…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach to Double the Sensitivity of Polarization Maintaining Interferometric Fiber Optic Gyroscope

Zhang

Liang

2020

Sensors

Self Cite

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“…As for software compensation, a small magnetometer in IFOG measures the magnetic field and the magnetic error can be compensated with software. Nevertheless, this method is focused on axial magnetic field only 14 , 15 . In fiber coil compensation, several particular fiber coils are joined in IFOG to compensate the RME 16 , 17 .…”

Section: Introductionmentioning

confidence: 99%

A New Optical Method for Suppressing Radial Magnetic Error in a Depolarized Interference Fiber Optic Gyroscope

Zhou

Zhao²,

Zhang

et al. 2018

Sci Rep

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Based on the theory of the radial magnetic error (RME) in depolarized interference fiber optic gyroscopes (D-IFOGs) under magnetic field, a new optical method is proposed to decrease the RME by adding a suppressing section fiber (SSF) in D-IFOGs. A related theoretical model is established, and the solutions of the parameters of the SSF are obtained with numerical calculations. Then the results of the suppressed RME are simulated. An experimental system is set up to verify the theory and simulation, and the experimental results prove that the RME can be suppressed effectively with a SSF added in the D-IFOG. The magnitude of the RME can be reduced to one-tenth of the original.

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Research on the temperature characteristic of magnetic sensor in the magnetic drift compensation fiber-optic gyroscope

Liang

Zhou

Zhang

et al. 2018

Optik

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A software-compensation method to orthogonal magnetic field drift in a depolarized fiber-optic gyroscope

Cited by 5 publications

References 8 publications

A Novel Approach to Double the Sensitivity of Polarization Maintaining Interferometric Fiber Optic Gyroscope

A Novel Approach to Double the Sensitivity of Polarization Maintaining Interferometric Fiber Optic Gyroscope

A New Optical Method for Suppressing Radial Magnetic Error in a Depolarized Interference Fiber Optic Gyroscope

Research on the temperature characteristic of magnetic sensor in the magnetic drift compensation fiber-optic gyroscope

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