Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Elnatan Chagas Ferreira"'
Autor:
Adelson Duarte dos Santos, Rodrigo Moreira Bacurau, Anderson Vedoveto Martins, Alex Dante, Elnatan Chagas Ferreira
Publikováno v:
IEEE Latin America Transactions. 20:2455-2462
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 69:1140-1147
We present in this paper a method and apparatus for nonintrusive measurement of active energy in low-voltage ac installations. In the proposed method, the active power is calculated from the voltage and current waveforms, and the phase shift between
Autor:
Marcelo Martins Werneck, Juan David Lopez, Regina Celia da Silva Barros Allil, Elnatan Chagas Ferreira, Cesar Cosenza Carvalho, Alcides O. Cremonezi, Alex Dante, Rodrigo M. Bacurau
Publikováno v:
IEEE Sensors Journal. 20:3572-3578
This paper presents the design, fabrication, and characterization of two compact fiber-optic current sensors (FOCS) based on fiber Bragg gratings (FBG) and the magnetostrictive alloy Terfenol-D. Finite-element-method (FEM) simulations assisted key op
Autor:
Alex Dante, Juan David Lopez, Regina Celia da Silva Barros Allil, Cesar Cosenza Carvalho, Roberto Wu Mok, Alcides O. Cremonezi, Elnatan Chagas Ferreira, Marcelo Martins Werneck, Rodrigo M. Bacurau
Publikováno v:
IEEE Photonics Technology Letters. 31:1987-1990
In this letter, we present a compact, open-loop fiber-optic current sensor (FOCS) based on fiber Bragg gratings (FBG) and magnetostrictive composites of Terfenol-D (TD) optimized for enhanced sensitivity and linearity using small concentrations of th
Autor:
Marcelo Martins Werneck, Regina Celia da Silva Barros Allil, Elnatan Chagas Ferreira, Alex Dante, Cesar Cosenza Carvalho, Rodrigo M. Bacurau
Publikováno v:
Applied optics. 58(30)
In this paper, we present the design and fabrication of a compact, modular optical high-voltage sensor (OHVS) based on fiber Bragg gratings (FBG) for a.c. distribution and transmission lines. The proposed OHVS is composed by a stack of piezoelectric
Autor:
Alex Dante, F.F. Borghi, Alcides O. Cremonezi, Elnatan Chagas Ferreira, Marcelo Martins Werneck, Henry Riascos, A. M. Gomes, Regina Celia da Silva Barros Allil, Juan David Lopez, B. R. Salles, Cesar Cosenza Carvalho
Publikováno v:
2019 IEEE SENSORS.
This paper presents a compact fiber-optic current sensor (FOCS) based on fiber Bragg gratings and Terfenol-D as the magnetostrictive material for monitoring of high-voltage transmission lines. Using finite-element-method (FEM) simulations and magneti
Autor:
Jose Antonio Siqueira Dias, Alex Dante, Rodrigo M. Bacurau, Elnatan Chagas Ferreira, Anderson Wedderhoff Spengler
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 65:2476-2484
In this paper, a temperature-independent technique for measurements of ac signals, such as voltage and electrical current, with fiber Bragg grating (FBG) sensors is presented. This technique is based on a twin-grating scheme, in which the measured qu
Autor:
Pedro Carvalhaes Dias, Andreu Cabot, Flávio José de Oliveira Morais, Alejandro Ruiz, Silvia Ortega, Doris Cadavid, Elnatan Chagas Ferreira, Maria Bernadete de Morais Franca
Publikováno v:
Sensors and Actuators A: Physical. 239:1-7
An autonomous single heat pulse probe porous ceramic soil moisture sensor powered by a thermoelectric generator (TEG) is presented. The sensor uses nanostructured thermosensitive resistors fabricated on the same ceramic substrate of the TEG. The nano
Autor:
Pedro Carvalhaes Dias, Flávio José de Oliveira Morais, Andreu Cabot, Jose Antonio Siqueira Dias, Elnatan Chagas Ferreira, Maria Bernadete de Morais Franca
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 64:2918-2925
An autonomous multisensor system powered by an energy harvester fabricated with a flat-panel solar thermoelectric generator with an ultralow-power management circuit is presented. The multisensor system was tested in an agricultural application, wher
Publikováno v:
26th International Conference on Optical Fiber Sensors.
A swept laser using a reference based on acetylene cell have been used as a water level FBG interrogator for run-of-the river hydroelectric applications, where long term stability and high reliability measurements are required. The results for 1 mm w