Using the transversely isotropic characteristics of the coil to calculate the thermal-drift parameters of a fiber-optic gyroscope

Есипенко, И А; Лыков, Д.А.; Smetannikov, O.Y.

doi:10.1364/jot.86.000289

Cited by 8 publications

(3 citation statements)

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“…Theoretical and experimental results are reported as 0.319 and 0.435 ( • h)/( • C/min), respectively for a 1.1 km length and 8 cm diameter quadrupole fiber coil. These results show that the approach proposes simple design changes to increase the performance to the same order of magnitude of the latest developments in the literature, better than various quadrupole designs [12][13][14] and close to octupolar winding performance [13,14].…”

Section: Introductionmentioning

confidence: 52%

“…, p 12 and p 11 are the photoelastic coefficients of the fiber glass, andε f anḋ ε p are the time derivatives of the strain fields through the fiber propagation axis and the perpendicular axis inside the fiber core, respectively. The strain change can be induced by the temperature fluctuation [9][10][11][12][13][14], the vibration [15], or the change of the moisture level inside the fiber [16]. The two bias error mechanisms are additive and the total bias error is…”

Section: Theoretical Backgroundmentioning

confidence: 99%

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Thermally induced bias error due to strain inhomogeneity through the fiber optic gyroscope coil

2020

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One of the performance limits of a navigation grade fiber optic gyroscope is the bias error due to the thermal sensitivity of the fiber coil. Thermal stress inside the fiber coil is an important source of the bias error. The reduction of the total stress inside the fiber coil can be limited. In this paper, it is shown that further improvement can be achieved by controlling the strain inhomogeneity through the fiber coil. A validated simulation environment is presented for strain distribution analysis. Thermally induced bias error formation mechanisms are compared. The effect of the strain inhomogeneity is reduced by presenting a different coil cross section and spool material. Experiments utilizing a coil design with better performance are presented for the verification of the approach.

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Section: Introductionmentioning

confidence: 52%

Section: Theoretical Backgroundmentioning

confidence: 99%

Thermally induced bias error due to strain inhomogeneity through the fiber optic gyroscope coil

2020

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“…There are several studies related to the assessment of the influence of geometric characteristics [30], physico-mechanical and operational properties of quartz glasses [31], production process parameters [32], etc. Almost all studies related to determination of the fiber deformation and optical characteristics are considered within the framework of the geometric configuration significant simplifications: without section geometry using averaged properties, without protective coating [33][34][35], in the framework of the thermoelasticity theory, without relaxation processes. Simplification of the object under study models leads to inaccuracies and significantly affects the qualitative and quantitative level on the obtained patterns of changes in optical and deformation characteristics within the framework of technological and operational processes.…”

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confidence: 99%

Analysis of the Polymer Two-Layer Protective Coating Impact on Panda-Type Optical Fiber under Bending

2022

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The article discusses the effects of thermal-force on the Panda-type optical fiber. The studies used a wide temperature range. The research used two thermal cycles with exposures to temperatures of 23, 60 and −60 °C. The field of residual stresses in the fiber formed during the drawing process was determined and applied. Panda was considered taking into account a two-layer viscoelastic polymer coating under conditions of tension winding on an aluminum coil in the framework of a contact problem. The paper investigated three variants of coil radius to analyze the effect of bending on fiber behavior. The effect of the coating thickness ratio on the system deformation and optical characteristics was analyzed. Qualitative and quantitative patterns of the effect of temperature, bending, thickness of individual polymer coating layers and relaxation transitions of their materials on the Panda optical fiber deformation and optical characteristics were established. Assessment of approaches to the calculation of optical characteristics (values of the refractive indices and fiber birefringence) are given in the framework of the study. The patterns of deformation and optical behavior of the Panda-type fiber with a protective coating, taking into account the nonlinear behavior of the system materials, were original results.

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Thermomechanical analysis of the effects of homogeneous thermal field induced in the sensing coil of a fiber-optic gyroscope

Pillon

Louf

Boiron

et al. 2022

Finite Elements in Analysis and Design

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Using the transversely isotropic characteristics of the coil to calculate the thermal-drift parameters of a fiber-optic gyroscope

Cited by 8 publications

References 0 publications

Thermally induced bias error due to strain inhomogeneity through the fiber optic gyroscope coil

Thermally induced bias error due to strain inhomogeneity through the fiber optic gyroscope coil

Analysis of the Polymer Two-Layer Protective Coating Impact on Panda-Type Optical Fiber under Bending

Thermomechanical analysis of the effects of homogeneous thermal field induced in the sensing coil of a fiber-optic gyroscope

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