ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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11
Issue
vol 60 / NOVEMBER, 2017
Article
UDC 621.372.82:621.383.8-752.4:536.7

THERMAL DRIFT OF FIBER OPTIC GYROSCOPE

I. Vahrameev
Perm State Technical University, Department of Heat Engineering;


K. S. Galyagin
Perm State Technical University, Department of Heat Engineering; Head of the Chair


S. A. Ivonin
Public Corporation “Perm Scientific Production Instrumentation Co. ”; Engineer-Researche


A. M. Oshivalov
Perm State Technical University, Department of Heat Engineering;


A. T. Ulrikh
Perm State Technical University, Department of Heat Engineering;


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Abstract. A mathematical model has been developed to simulate apparent angular velocity induced by unstable thermal state of the gyroscope sensor. The model is based on numerical solution of related differential boundary value problem of thermal photoelasticity. Results of numerical simulation for non-stationary thermal drift are presented and compared with full-scale experiment data.
Keywords: fiber optic giro, thermal instability, phase shift, thermoelasticity, piezooptics.