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Proceedings Paper

Methods of alternating biased laser gyro resolution and bandwidth increase
Author(s): Valery I. Gupalov; Andrei V. Mochalov
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Paper Abstract

Application of the laser gyro (LG) with an alternating bias for angular dynamic measurements runs into errors mainly caused by discrete output signal for level and time. We have developed a method of increasing LG resolution, based on formation of additional signals possessing a given phase shift with respect to two initial analog signals of variable frequency. The bandwidth of the LG is usually limited by twice the frequency of the alternating bias. This frequency is increased by further formation of time intervals symmetric with respect to the zeros of the "initial bias function" and representing the "inserted cycles" for determination of the increments of the LG output signal. The measurement error arising from the use of the developed method is estimated.

Paper Details

Date Published: 19 June 2003
PDF: 9 pages
Proc. SPIE 5066, Lasers for Measurements and Information Transfer 2002, (19 June 2003); doi: 10.1117/12.501387
Show Author Affiliations
Valery I. Gupalov, St. Petersburg Electrotechnical Univ. (Russia)
Andrei V. Mochalov, St. Petersburg Electrotechnical Univ. (Russia)

Published in SPIE Proceedings Vol. 5066:
Lasers for Measurements and Information Transfer 2002
Vadim E. Privalov, Editor(s)

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