scholarly journals Application research on fiber-optic current sensor in large pulse current measurement

2020 ◽  
Vol 1507 ◽  
pp. 072015
Author(s):  
W Ye ◽  
Z Dong ◽  
R Ren ◽  
J Liu ◽  
K Huang ◽  
...  
2014 ◽  
Author(s):  
Frédéric Descamps ◽  
Matthieu Aerssens ◽  
Andrei Gusarov ◽  
Patrice Mégret ◽  
Marc Wuilpart

2014 ◽  
Vol 22 (12) ◽  
pp. 14666 ◽  
Author(s):  
Frédéric Descamps ◽  
Matthieu Aerssens ◽  
Andrei Gusarov ◽  
Patrice Mégret ◽  
Vincent Massaut ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1561
Author(s):  
Hao Chen ◽  
Zhongnan Qian ◽  
Chengyin Liu ◽  
Jiande Wu ◽  
Wuhua Li ◽  
...  

Current measurement is a key part of the monitoring system for power transmission lines. Compared with the conventional current sensor, the distributed, self-powered and contactless current sensor has great advantages of safety and reliability. By integrating the current sensing function and the energy harvesting function of current transformer (CT), a time-multiplexed self-powered wireless sensor that can measure the power transmission line current is presented in this paper. Two operating modes of CT, including current sensing mode and energy harvesting mode, are analyzed in detail. Through the design of mode-switching circuit, harvesting circuit and measurement circuit are isolated using only one CT secondary coil, which eliminates the interference between energy harvesting and current measurement. Thus, the accurate measurement in the current sensing mode and the maximum energy collection in the energy harvesting mode are both realized, all of which simplify the online power transmission line monitoring. The designed time-multiplexed working mode allows the sensor to work at a lower transmission line current, at the expense of a lower working frequency. Finally, the proposed sensor is verified by experiments.


2019 ◽  
Vol 138 ◽  
pp. 48-52 ◽  
Author(s):  
Doğuş Karabulut ◽  
Anton Miazin ◽  
Andrei Gusarov ◽  
Philippe Moreau ◽  
Willem Leysen ◽  
...  
Keyword(s):  

2010 ◽  
Vol 437 ◽  
pp. 314-318 ◽  
Author(s):  
Nikolay I. Starostin ◽  
Maksim V. Ryabko ◽  
Yurii K. Chamorovskii ◽  
Vladimir P. Gubin ◽  
Aleksandr I. Sazonov ◽  
...  

The interferometric electric current fiber-optic sensor for application in industry is presented. The modified spun fiber is used for sensitive fiber coil of sensor. The sensor has accuracy of 0.5% at temperature range from -40°C to 60°C without necessity of additional temperature compensation. The range of measured current is 15 – 250 kA. A frequency band is 0 – 5000 Hz and a nonlinearity of a sensor output is ±0.15%.


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