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.

• Record URL:
  https://doi.org/10.4031/MTSJ.51.1.2
• Record URL:
  http://www.ingentaconnect.com/content/mts/mtsj/2017/00000051/00000001/art00003
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1623789
• Supplemental Notes:
  • Copyright © 2017 Marine Technology Society, Inc.
• 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
• 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