Digital Demodulation Using I/Q Signals and Optical Phase Control Applied to a Vibrometer

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorFed Inst Mato Grosso Sul-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniv Limerick-
Autor(es): dc.creatorGalvez-Limaco, Angel Manuel [UNESP]-
Autor(es): dc.creatorGaleti, Jose Henrique-
Autor(es): dc.creatorNelli Silva, Emilio Carlos-
Autor(es): dc.creatorHiguti, Ricardo Tokio [UNESP]-
Autor(es): dc.creatorConnelly, Michael J.-
Autor(es): dc.creatorKitano, Claudio [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:57:05Z-
Data de disponibilização: dc.date.available2022-02-22T00:57:05Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1109/JSEN.2020.2997900-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/209603-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/209603-
Descrição: dc.descriptionAn efficient and cost effective optical phase detection vibrometer based on a modified closed loop homodyne Michelson interferometer is presented. Real-time phase demodulation is carried out, using an embedded platform that performs data acquisition, signal processing, PI (proportional-integral) control and the generation of signals that drive the electrooptic Pockels cell phase shifter and the piezoelectric actuator under test. Two phase quadrature signals are generated from a single interferometric output, using the interleaving action, in alternation, of a digitally generated modulating signal, and then the well-known differential-cross-multiplication technique is applied to perform the computation of the phase shift of interest. The quadrature condition is reached using the PI loop based on an error signal obtained from a Lissajous figure derived from out-of-phase signals. The vibrometer is capable of measuring nanometric displacements, and is simple, inexpensive, accurate, immune to fading and self-consistent. The new method was used to determine the displacement frequency response curves of two prototypes of multi-actuated flextensional piezoelectric actuators. Measurements were made between 500 Hz and 15 kHz, and the results agreed with those obtained by the standard SCM-Signal Coincidence Method.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSao Paulo State Univ, Dept Elect Engn, BR-15385000 Ilha Solteira, Brazil-
Descrição: dc.descriptionFed Inst Mato Grosso Sul, BR-79641162 Tres Lagoas, Brazil-
Descrição: dc.descriptionUniv Sao Paulo, Escola Politen, Dept Mech Engn, BR-05508900 Sao Paulo, Brazil-
Descrição: dc.descriptionUniv Limerick, Dept Elect & Comp Engn, Opt Commun Res Grp, Limmerick V94 T9PX, Ireland-
Descrição: dc.descriptionSao Paulo State Univ, Dept Elect Engn, BR-15385000 Ilha Solteira, Brazil-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionCNPq: 420673/2016-
Descrição: dc.descriptionCNPq: 305546/2017-1-
Descrição: dc.descriptionCNPq: 302658/2018-1-
Formato: dc.format11313-11325-
Idioma: dc.languageen-
Publicador: dc.publisherIeee-inst Electrical Electronics Engineers Inc-
Relação: dc.relationIeee Sensors Journal-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectOptical interferometry-
Palavras-chave: dc.subjectOptical sensors-
Palavras-chave: dc.subjectLaser beams-
Palavras-chave: dc.subjectAdaptive optics-
Palavras-chave: dc.subjectPiezoelectric materials-
Palavras-chave: dc.subjectSemiconductor device measurement-
Palavras-chave: dc.subjectpiezoelectric transducers-
Palavras-chave: dc.subjectsignal processing-
Palavras-chave: dc.subjectmetrology-
Título: dc.titleDigital Demodulation Using I/Q Signals and Optical Phase Control Applied to a Vibrometer-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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