Next Article in Journal
Force-Sensing Silicone Retractor for Attachment to Surgical Suction Pipes
Previous Article in Journal
Beamforming Based Full-Duplex for Millimeter-Wave Communication
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(7), 1131; doi:10.3390/s16071131

Modeling for IFOG Vibration Error Based on the Strain Distribution of Quadrupolar Fiber Coil

College of Automation, Harbin Engineering University, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 24 May 2016 / Revised: 1 July 2016 / Accepted: 1 July 2016 / Published: 21 July 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [2661 KB, uploaded 21 July 2016]   |  

Abstract

Improving the performance of interferometric fiber optic gyroscope (IFOG) in harsh environment, especially in vibrational environment, is necessary for its practical applications. This paper presents a mathematical model for IFOG to theoretically compute the short-term rate errors caused by mechanical vibration. The computational procedures are mainly based on the strain distribution of quadrupolar fiber coil measured by stress analyzer. The definition of asymmetry of strain distribution (ASD) is given in the paper to evaluate the winding quality of the coil. The established model reveals that the high ASD and the variable fiber elastic modulus in large strain situation are two dominant reasons that give rise to nonreciprocity phase shift in IFOG under vibration. Furthermore, theoretical analysis and computational results indicate that vibration errors of both open-loop and closed-loop IFOG increase with the raise of vibrational amplitude, vibrational frequency and ASD. Finally, an estimation of vibration-induced IFOG errors in aircraft is done according to the proposed model. Our work is meaningful in designing IFOG coils to achieve a better anti-vibration performance. View Full-Text
Keywords: fiber elastic modulus; quadrupolar fiber coil; vibration model; asymmetry of strain distribution fiber elastic modulus; quadrupolar fiber coil; vibration model; asymmetry of strain distribution
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).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Gao, Z.; Zhang, Y.; Zhang, Y. Modeling for IFOG Vibration Error Based on the Strain Distribution of Quadrupolar Fiber Coil. Sensors 2016, 16, 1131.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top