Configuration Optimization in Miniature Interferometric Fiber-Optic Gyroscopes for Space Application

Ma, Kun; Song, Ningfang; Jin, Jing; He, Jiliang; Zio, Enrico

doi:10.1109/jsen.2020.2977584

Cited by 15 publications

(5 citation statements)

References 18 publications

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“…As mentioned in literature [32], optical source of FOGs has the highest failure rate in space environment. And once the optical source fails, it will lead to concurrent faults of four-axis gyroscopes.…”

Section: Fault Case 3: Concurrent Faults In Four-axis Gyroscopesmentioning

confidence: 97%

“…2. This configuration, donated as four-axis with source-sharing scheme, has two optical transmitter modules, four optical receiver modules, four signal processing modules and four sensing coil modules [32]. Three orthogonal mounted gyros are selected as task group, and the inclined gyro is used as alternate.…”

Section: Minimal Redundancy Confiuration Fogsmentioning

confidence: 99%

“…Gyros components are affected by different environmental factors in space environment, such as temperature and radiation. According to literature [32], the corresponding failure rates of different components in FOGs are summarized in TABLE I. It can be seen from the above table that the components of optical source and PIN-FET are more susceptible to the space environment.…”

Section: Minimal Redundancy Confiuration Fogsmentioning

confidence: 99%

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Fault Diagnosis for Space-Borne Fiber-Optic Gyroscopes Using a Hybrid Method

2020

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Timely detection and isolation of the failures in attitude sensor is a critical task to ensure the normal operation of the satellite. This paper proposes a fault detection and isolation scheme for the fouraxis fiber-optic gyroscopes using a hybrid method. Based on the attitude kinematics and gyro model, a sensor fault detector is developed using an adaptive Kalman filter. The process noise covariance can be autonomously tuned by the proposed adaptive mechanism, which makes the filter more robust to the uncertain covariance parameters. The constant drift estimations obtained by the adaptive Kalman filter are applied to detect sensor faults. At the same time, the value of parity equation is computed in real-time using the signals of the four-axis gyroscopes. Then fault diagnosis rules are presented to isolate the faulty sensor. Using the proposed hybrid fault detection and isolation method, fault in gyroscopes can be detected and isolated reliably, and the fault in angle sensor can be detected as well. Thus the results of fault detection and isolation provide the criterions for fiber-optic gyroscopes reconstruction. Finally, the effectiveness of the developed scheme is demonstrated by numerical simulations of four-axis gyroscopes and star sensor with some typical faults. INDEX TERMS Space-borne fiber-optic gyroscopes, fault detection and isolation, adaptive Kalman filter, parity equation, reconstruction.

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Section: Fault Case 3: Concurrent Faults In Four-axis Gyroscopesmentioning

confidence: 97%

Section: Minimal Redundancy Confiuration Fogsmentioning

confidence: 99%

Section: Minimal Redundancy Confiuration Fogsmentioning

confidence: 99%

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Fault Diagnosis for Space-Borne Fiber-Optic Gyroscopes Using a Hybrid Method

2020

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“…Overseeing these parameters, the proposed PCF provides 64% improvement in the results for the optimized structural parameters with compact cladding diameter. With the proposed PCF, miniaturization like winding as a coil can be done easily and it can be implemented as an element of FOG for space borne and military applications [40][41][42]. The application of the proposed PCF can also be extended to optical telecommunication, sensing applications, etc [43,44].…”

Section: Parametermentioning

confidence: 99%

A highly birefringent photonic crystal fiber with compact cladding layers suitable for fiber optic gyroscope application

Alishacelestin¹,

Raja²,

Selvendran³

2021

Laser Phys.

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A size reduced cladding layer of highly Birefringent photonic crystal fiber (PCF) that is suitable for fiber optic gyroscope application is proposed in this paper. A pair of minimized and enlarged air holes in the innermost layer of PCF is responsible for high birefringence and enlarged outer layer air holes are responsible for low confinement loss. The optimized geometrical parameters for this novel PCF are chosen so as to ensure high birefringence and low confinement loss. Fabrication of this proposed PCF is simplified by reducing the cladding layers. Obtained birefringence of this PCF is about 6.1 × 10−4 and the confinement loss is about 2.8 × 10−4 dB km−1.

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“…Nowadays, optical fiber ring laser sensors have become a hot topic due to their advantages of high signal-to-noise ratio and narrow 3-dB bandwidth [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. Liu et al, proposed a cascaded MZI for strain sensing [ 28 ], successfully achieving a sensitivity of 52.5 pm/µε.…”

Section: Introductionmentioning

confidence: 99%

A Temperature Independent Inclinometer Based on a Tapered Fiber Bragg Grating in a Fiber Ring Laser

Lin

Zhou

Shao

et al. 2021

Sensors

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We demonstrate a new concept for an all-fiber inclinometer based on a tapered fiber Bragg grating (tFBG) in a fiber ring laser (FRL) with the capability of measuring the tilt angle and temperature simultaneously. The sensor performance is analyzed theoretically and investigated experimentally. The dependence of tilt angle on the spectral response in variable temperature conditions was measured. Two inclinometers with different lengths have been fabricated and characterized in FRL. The sensitivity is 0.583 dB/° and 0.849 dB/°, respectively, in the range of 0° to 90°. Thanks to the FRL system, narrow 3-dB bandwidth (<0.1 nm) and high optical signal-to-noise ratio (~60 dB) are achieved. The tFBG in the FRL system can be used for working as a temperature insensitive inclinometer. The results suggested that the proposed inclinometer has the advantages of compact size and convenient manufacture, enhancing its potential for application prospect.

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Configuration Optimization in Miniature Interferometric Fiber-Optic Gyroscopes for Space Application

Cited by 15 publications

References 18 publications

Fault Diagnosis for Space-Borne Fiber-Optic Gyroscopes Using a Hybrid Method

Fault Diagnosis for Space-Borne Fiber-Optic Gyroscopes Using a Hybrid Method

A highly birefringent photonic crystal fiber with compact cladding layers suitable for fiber optic gyroscope application

A Temperature Independent Inclinometer Based on a Tapered Fiber Bragg Grating in a Fiber Ring Laser

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