Zobrazeno 1 - 9 of 9 pro vyhledávání: '"Odair Xavier"'
1
Proposal of fault prediction system for underground installations
Autor: Ricardo M. Ribeiro, Marcio Zamboti Fortes, H.O. Henriques, Odair Xavier, M.A.C. Pequeno, C.G. Vabo, Andrés Pablo López Barbero
Publikováno v: Measurement. 81:232-240
The absence of intelligent systems for fault prediction in components and equipment in underground installations does not allow a correct structure for maintenance programs to reduce intervening maintenance actions. Thus, it is necessary to devise a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::681dc2e418b6717d132f40d025df1e5c
https://doi.org/10.1016/j.measurement.2015.12.010
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2
Development of adapted ammeter for fraud detection in low-voltage installations
Autor: Andrés Pablo López Barbero, R.M. Amorim, H.O. Henriques, Odair Xavier, Ricardo M. Ribeiro, Marcio Zamboti Fortes, W. Zanco
Publikováno v: Measurement. 56:1-7
This article describes the development and implementation of a modified ammeter to facilitate fraud detection in low-voltage consumer units. The device has three modules: the first is a meter affixed to the top of a stick, which is the local unit and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a057a33dc0c08db051c9dd6df29adffd
https://doi.org/10.1016/j.measurement.2014.06.015
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3
Optimisation of a device for pick-up of low-frequency radio signals and transmission over polymer optical fibres
Autor: Ricardo M. Ribeiro, Odair Xavier, Andrés Pablo López Barbero, Jorge A. M. Souza, Marbey M. Mosso
Publikováno v: annals of telecommunications - annales des télécommunications. 68:81-93
The development of passive (without RF amplifier) and optimised VHF-detector/optical-modulator circuit module as a device for operation in the 88–108 MHz band will be described in this paper. It uses illumination-type light-emitting diodes (LEDs) e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::119eb4c7008c4ca755286c271904620e
https://doi.org/10.1007/s12243-012-0345-4
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9
An optoelectronic probe with loss compensation for electromagnetic monitoring at low frequencies
Autor: Ricardo M. Ribeiro, Jorge A. M. Souza, Andrés Pablo López Barbero, Odair Xavier
Publikováno v: Measurement Science and Technology. 20:115111
We explore the development of an optoelectronic probe for MF/HF/VHF (up to ~ 37 MHz) radio frequency bands able to display the complete waveforms. It was built from simple, low cost and robust components. A passive loop antenna generates RF current w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c988fd607a56127eae500a9d1f1094f
https://doi.org/10.1088/0957-0233/20/11/115111
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