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dc.contributor.authorFajkus, Marcel
dc.contributor.authorNedoma, Jan
dc.contributor.authorŠiška, Petr
dc.contributor.authorBednárek, Lukáš
dc.contributor.authorŽabka, Stanislav
dc.contributor.authorVašinek, Vladimír
dc.identifier.citationAdvances in electrical and electronic engineering. 2016, vol. 14, no. 3, p. 318-324cs
dc.description.abstractFiber optic interferometers and Bragg gratings belong to the group of very precise and sensitive devicesthat allow measuring very small deformation, temperature or vibration changes. The described methodology presentsthe useof a Mach-Zehnder interferometer and Bragg gratings together as a sensor system for detecting and monitoring movement within thedefined perimeter of 2.5×1m. Analyses of the dynamic changes in interferometric patterns were a basis for this method. Also the signal maximum amplitude was measured and compared with the noise background. Perimeter disruptions can be detected by Bragg gratings due to its large deformation sensitivity in transversal or perpendicular directions. The result is then evaluated in the spectral domain. In terms of detected persons it showed very good results. The combination of these sensors was chosen for monitoring both the static and dynamic phenomena. Author's aim is to take advantage of both devices' positive properties. Thus, the system has the abilityto identify people due to frequency analysis in case of interferometers as well as dynamic weighting thanks to Bragg gratings.cs
dc.format.extent684064 bytes
dc.publisherVysoká škola báňská - Technická univerzita Ostravacs
dc.relation.ispartofseriesAdvances in electrical and electronic engineeringcs
dc.subjectMach-Zehnder interferometercs
dc.subjectmonitoring of movementcs
dc.subjectperimeter systemcs
dc.subjectBragg gratingscs
dc.titlePerimeter system based on a combination of a Mach-Zehnder interferometer and the Bragg gratingscs

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