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Proceedings Paper

Open-loop fiber optic gyroscope with wide dynamic range and source variation insensitivity
Author(s): Stephanus J. Spammer; Pieter L. Swart
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Paper Abstract

A new topology is introduced for an analog phase detector for open-loop fiber-optic gyroscopes which consists of a linearization function and a control function. It is shown that five different trigonometric functions are suitable to perform the linearization function. It is shown that by introducing a feedforward loop, an exact replica of the input phase will be produced at the detector output. In addition, a technique is also presented which increases the angular range of the phase detector significantly beyond the +/- 3 pi range which is the limitation of the trigonometric generators in the circuit.

Paper Details

Date Published: 1 February 1992
PDF: 11 pages
Proc. SPIE 1585, Fiber Optic Gyros: 15th Anniversary Conf, (1 February 1992); doi: 10.1117/12.135050
Show Author Affiliations
Stephanus J. Spammer, Rand Afrikaans Univ. (South Africa)
Pieter L. Swart, Rand Afrikaans Univ. (South Africa)

Published in SPIE Proceedings Vol. 1585:
Fiber Optic Gyros: 15th Anniversary Conf
Shaoul Ezekiel; Eric Udd, Editor(s)

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