Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Erlon Vagner Da Silva"'
Autor:
João Paulo Bazzo, Daniel Rodrigues Pipa, Erlon Vagner da Silva, Cicero Martelli, Jean Carlos Cardozo da Silva
Publikováno v:
Sensors, Vol 16, Iss 9, p 1425 (2016)
This paper presents an image reconstruction method to monitor the temperature distribution of electric generator stators. The main objective is to identify insulation failures that may arise as hotspots in the structure. The method is based on temper
Externí odkaz:
https://doaj.org/article/5e477a833aad4239b1feb3dc998bf2c8
Autor:
Daniel R. Pipa, Jesse de Pelegrin, João Paulo Bazzo, Uilian José Dreyer, Erlon Vagner da Silva, Jean Carlos Cardozo da Silva, Cicero Martelli
Publikováno v:
IET Optoelectronics. 14:343-349
The temperature on the busbars of electric generators in the end-winding region needs to be monitored continuously. High temperature is associated with curvatures, seams, and poor ventilation. However, this solution has limitations, such as the numbe
Autor:
Uilian José Dreyer, Guilherme Dutra, Thiago da Silva, Felipe Mezzadri, Erlon Vagner da Silva, Cicero Martelli, Jean Carlos Cardozo da Silva, Carlos Alberto Bavastri
Publikováno v:
IEEE Sensors Journal. 18:1547-1554
Autor:
Daniel R. Pipa, João Paulo Bazzo, Jean Carlos Cardozo da Silva, Cicero Martelli, Erlon Vagner da Silva
Publikováno v:
IEEE Sensors Journal. 16:4425-4430
Traditional Raman distributed optical sensor (DTS) exhibits a low-pass characteristic that causes sharp temperature changes to be over smoothed. This behavior can be modeled as the convolution of the real temperature profile with the DTS impulse resp
Autor:
Erlon Vagner da Silva, Felipe Mezzadri, Cicero Martelli, Daniel R. Pipa, Jean Carlos Cardozo da Silva, João Paulo Bazzo
Publikováno v:
IEEE Sensors Journal. 15:6689-6696
This paper presents a new method for thermal imaging of hydroelectric generators stators. The method is based on distributed temperature optical fiber sensing using Raman scattering. The thermal image is generated by combining the information of temp
Autor:
Erlon Vagner da Silva, Cicero Martelli, Uilian José Dreyer, Jean Carlos Cardozo da Silva, Andre Biffe Di Renzo
Publikováno v:
SPIE Proceedings.
This work presents the application of a sensor based on quasi-distributed Fiber Bragg Gratings to monitor stator bars temperature of large electric generators. The applied FBG packaging method follows industrial standard procedures, and resulted in a
Autor:
Erlon Vagner da Silva, Daniel R. Pipa, Jean Carlos Cardozo da Silva, Cicero Martelli, João Paulo Bazzo, Felipe Mezzadri
Publikováno v:
2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).
This paper presents a super-resolution algorithm developed to improve a thermal imaging system based on distributed optical sensors (DTS). The super-resolution is achieved by additional information provided by localized FBG sensors. The combination o
Autor:
João Paulo Bazzo, Felipe Mezzadri, Daniel R. Pipa, Jean Carlos Cardozo da Silva, Erlon Vagner da Silva, Cicero Martelli
Publikováno v:
Advanced Photonics 2015.
This paper presents a thermal imaging system for stators of hydroelectric generators using distributed sensors. The main advantage of this approach over conventional sensors is the possibility to identify temperature variations over the stator struct
Autor:
Ricardo Zandonay, Cicero Martelli, Erlon Vagner da Silva, Jean Carlos Cardozo da Silva, Kleiton de Morais Sousa
Publikováno v:
SPIE Proceedings.
Electric current sensor based on magnetostriction phenomenon has been reported in several papers. In common these previous papers used a fiber Bragg grating (FBG) to determine the strain of the magnetostrictive material. However, magnetostriction sen