Technique For Suppressing The Electronic Offset Drift Of Interferometric Open-loop Fiber Optic Gyroscopes

dc.creatorBacurau
dc.creatorRodrigo M.; Spengler
dc.creatorAnderson W.; Dante
dc.creatorAlex; Morais
dc.creatorFlavio J. O.; Duarte
dc.creatorLuis F. C.; Ribeiro
dc.creatorLuiz E. B.; Ferreira
dc.creatorElnatan C.
dc.date2016
dc.datenov
dc.date2017-11-13T13:54:35Z
dc.date2017-11-13T13:54:35Z
dc.date.accessioned2018-03-29T06:08:01Z
dc.date.available2018-03-29T06:08:01Z
dc.identifierOptics Letters. Optical Soc Amer, v. 41, p. 5186 - 5189, 2016.
dc.identifier0146-9592
dc.identifier1539-4794
dc.identifierWOS:000387760700013
dc.identifier10.1364/OL.41.005186
dc.identifierhttps://www.osapublishing.org/ol/abstract.cfm?uri=ol-41-22-5186
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/329440
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1366465
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionA technique to eliminate the offset drift in the demodulator circuitry of open-loop interferometric fiber optic gyroscopes is presented. This technique employs a demodulation scheme that uses the area of the negative half- cycles of the output signal of a sinusoidally modulated gyroscope to obtain the angular velocity. We propose an electronic circuitry that periodically reverses the demodulator input, allowing for the acquisition of two samples of the gyroscope signal with the same magnitude and opposite polarities. The angular velocity is obtained from the subtraction of these two samples, suppressing the electronic offset. Experiments showed that the proposed method reduces the demodulator offset drift from 4.4 mu V/degrees C to about 14 nV/degrees C, which is equivalent to a reduction, from 0.2 deg/h/degrees C to about 0.0006 deg/h/degrees C in the tested gyroscope. The proposed technique improved the bias stability of the tested gyroscope from 0.0162 to 0.0071 deg/h. (C) 2016 Optical Society of America
dc.description41
dc.description22
dc.description5186
dc.description5189
dc.descriptionConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
dc.descriptionCoordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageEnglish
dc.publisherOptical Soc Amer
dc.publisherWashington
dc.relationOptics Letters
dc.rightsfechado
dc.sourceWOS
dc.titleTechnique For Suppressing The Electronic Offset Drift Of Interferometric Open-loop Fiber Optic Gyroscopes
dc.typeArtículos de revistas


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