Temperature stabilization in fibre optic gyroscopes for high altitude aircraft

Jazil Nazir, Thullimalli Vivek, Thangaraj Jaisingh

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In earlier days, aircrafts used mechanical gyroscopes which were susceptible to shock, mechanical damage with low accuracy. Developments in fibre optics have led to optics based gyroscopes. Today's conventional aircraft uses sufficient gyroscopes to perform its action such as attitude control, gyro compassing, turn coordination systems and auto pilots. Any error in a gyroscope causes miscalculation of the position or alignment of the aircraft. Commercial aircraft at higher altitudes are susceptible to variations in the temperature. But, in case of fibre optic gyroscopes (FOG), it results in the fluctuation of laser power output which in turn disturbs the output information. We have proposed a temperature control for a closed loop fibre optic gyroscope using a thermo electric cooler (TEC) for stabilizing the output power of a super luminescent diode (SLD). A control loop with a PID controller, filter, TEC and thermistor is proposed which is a part of the temperature control loop to maintain the TEC surface temperature within the specified temperature range. We have simulated the performance for step input along with finite disturbances that are applied over the temperature control loop along its effect over the SLD output power and the effect on gyroscope output is evaluated.

Original languageEnglish
Pages (from-to)9701-9710
Number of pages10
JournalOptik
Volume127
Issue number20
DOIs
Publication statusPublished - 01-10-2016
Externally publishedYes

Fingerprint

Gyroscopes
gyroscopes
high altitude
Fiber optics
aircraft
fiber optics
Stabilization
stabilization
Aircraft
temperature control
coolers
Temperature control
output
Temperature
temperature
Diodes
diodes
mechanical shock
commercial aircraft
Thermistors

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Nazir, Jazil ; Vivek, Thullimalli ; Jaisingh, Thangaraj. / Temperature stabilization in fibre optic gyroscopes for high altitude aircraft. In: Optik. 2016 ; Vol. 127, No. 20. pp. 9701-9710.
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Temperature stabilization in fibre optic gyroscopes for high altitude aircraft. / Nazir, Jazil; Vivek, Thullimalli; Jaisingh, Thangaraj.

In: Optik, Vol. 127, No. 20, 01.10.2016, p. 9701-9710.

Research output: Contribution to journalArticle

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