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Sensors 2016, 16(6), 900; doi:10.3390/s16060900

A Thermal Performance Analysis and Comparison of Fiber Coils with the D-CYL Winding and QAD Winding Methods

College of Automation, Harbin Engineering University, Harbin 150001, Heilongjiang, China
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Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 28 April 2016 / Revised: 1 June 2016 / Accepted: 2 June 2016 / Published: 16 June 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [2565 KB, uploaded 16 June 2016]   |  

Abstract

The thermal performance under variable temperature conditions of fiber coils with double-cylinder (D-CYL) and quadrupolar (QAD) winding methods is comparatively analyzed. Simulation by the finite element method (FEM) is done to calculate the temperature distribution and the thermal-induced phase shift errors in the fiber coils. Simulation results reveal that D-CYL fiber coil itself has fragile performance when it experiences an axially asymmetrical temperature gradient. However, the axial fragility performance could be improved when the D-CYL coil meshes with a heat-off spool. Through further simulations we find that once the D-CYL coil is provided with an axially symmetrical temperature environment, the thermal performance of fiber coils with the D-CYL winding method is better than that with the QAD winding method under the same variable temperature conditions. This valuable discovery is verified by two experiments. The D-CYL winding method is thus promising to overcome the temperature fragility of interferometric fiber optic gyroscopes (IFOGs). View Full-Text
Keywords: fiber coil; double-cylinder (D-CYL); quadrupolar (QAD); finite element method (FEM); interferometric fiber optic gyroscope (IFOG) fiber coil; double-cylinder (D-CYL); quadrupolar (QAD); finite element method (FEM); interferometric fiber optic gyroscope (IFOG)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, X.; Ling, W.; He, K.; Xu, Z.; Du, S. A Thermal Performance Analysis and Comparison of Fiber Coils with the D-CYL Winding and QAD Winding Methods. Sensors 2016, 16, 900.

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