Finite Element Analysis of the Influence of Ambient Temperature Variations on the Performance of Fiber Optic Gyroscope Sensing Coils
Time transience-related nonreciprocal effect due to ambient temperature variations has significant influence in the bias stability performance of interference-type fiber optic gyroscopes (I-FOG). This paper presents the thermal finite element analysis (FEA) done on a 10-km-long I-FOG sensing coil wound with a diameter of 10 cm in a bipolar configuration for identifying its bias performance during ambient temperature variations. Results indicate that, with a sampling frequency of 0.5 kHz, the ambient temperature variation of 0.5°/min could degrade the bias stability performance of the I-FOG to tactical grade level, while maintaining ambient temperature variation within 0.01°/min is required to attain bias stabilities >0.001°/h, the performance required for the strategic grade applications. It is also identified that in a temperature stabilized environment, sensing coil with 10 and 40 layers requires a thermal stabilization time of about 9 and 26 min, respectively.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/1623789
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Supplemental Notes:
- Copyright © 2017 Marine Technology Society, Inc.
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Authors:
- Ramadass, Gidugu Ananda
- Vedachalam, Narayanaswamy
- Umapathy, Arunachalam
- Ramesh, Raju
- Balanagajyothi, Vandavasi
- Publication Date: 2017-1
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 16-22
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Serial:
- Marine Technology Society Journal
- Volume: 51
- Issue Number: 1
- Publisher: Marine Technology Society
- ISSN: 0025-3324
- Serial URL: http://ingentaconnect.com/content/mts/mtsj
Subject/Index Terms
- TRT Terms: Atmospheric temperature; Coils (Electromagnetism); Fiber optics; Finite element method; Gyroscopes; Thermal stability
- Subject Areas: Environment; Marine Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 01634017
- Record Type: Publication
- Files: TRIS
- Created Date: May 1 2017 9:37AM