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pro vyhledávání: '"Ushakov, Nikolai"'
In the current paper, we have developed an analytical apparatus, allowing to calculate the phase error, produced by miscalibration of modulation parameters. The case of harmonic modulation is considered, the analysis is performed for cases of two par
Externí odkaz:
http://arxiv.org/abs/1904.13140
Autor:
Ushakov, Nikolai, Liokumovich, Leonid
A novel approach for measuring fast oscillations of an absolute value of interferometer optical path difference (OPD) has been developed. The principles of frequency-scanning interferometry are utilized for registration of the interferometer spectral
Externí odkaz:
http://arxiv.org/abs/1904.13134
Autor:
Liokumovich, Leonid, Medvedev, Andrei, Muravyov, Konstantin, Skliarov, Philipp, Ushakov, Nikolai
In current paper, distortions in digital demodulation schemes with harmonic phase modulation for interferometric optical sensors are considered. In particular, the influence of target signal variations on phase demodulation errors is theoretically ev
Externí odkaz:
http://arxiv.org/abs/1904.13139
Autor:
Ushakov, Nikolai, Liokumovich, Leonid
Resolution investigation of multiplexed displacement sensors based on extrinsic fiber Fabry-Perot interferometers (EFPI) was carried out. The cases of serial and parallel configurations were considered, the analysis of the problems and the advantages
Externí odkaz:
http://arxiv.org/abs/1904.12657
An approach for compensating the influence of the interrogator noises on the readings of interferometric sensors, interrogated by means of spectral interferometry with wavelength tuning is proposed. Both theoretical analysis and a proof-of-principle
Externí odkaz:
http://arxiv.org/abs/1904.12656
Autor:
Ushakov, Nikolai, Liokumovich, Leonid
The factors limiting the resolution of displacement sensor based on extrinsic Fabry-Perot interferometer were studied. An analytical model giving the dependency of EFPI resolution on the parameters of an optical setup and a sensor interrogator was de
Externí odkaz:
http://arxiv.org/abs/1904.10779
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Publikováno v:
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 15, Iss 4 (2022)
The paper describes the development of an analytical response model of an extrinsic fiber Fabry – Perot interferometer with a multilayer cavity in case of spectral interrogation. The system of equations allowing to calculate the spectral characteri
Externí odkaz:
https://doaj.org/article/4cb19207db8e4dc2817c83d5648c43ff
Publikováno v:
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 15, Iss 3 (2022)
In the paper, the systematic (bias) error of digital processing of the biharmonic signal of two multiplexed fiber-optic interferometers under spectral interrogation, when the registered spectral transfer function being processed through a discrete Fo
Externí odkaz:
https://doaj.org/article/5fd9037b9381440cae424b6ba0206460