Abstract
This chapter describes the principle of operation and the main properties of the interferometric fiber optic gyro (IFOG) which, along with the ring laser gyro (RLG) introduced in the next chapter, has been a principal departure from the well-paved road of spinning mass gyros. Both are based on a fundamental law of physics, namely, the universal constancy of the speed of light in vacuum underlying relativity. The laser gyro is not really a gyro in the classical Newtonian sense of conservation of momentum, but, it takes advantage of the ‘inertia’ of light as will be explained below. The technology has evolved along two principal paths: The RLG, being a closed-path optical oscillator, is active, while the IFOG, which draws its light energy from an external source, is a passive interferometer.
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© 1996 Springer-Verlag New York, Inc.
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Merhav, S. (1996). The Interferometric Fiber-Optic Gyro. In: Aerospace Sensor Systems and Applications. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3996-3_8
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DOI: https://doi.org/10.1007/978-1-4612-3996-3_8
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