High-voltage current sensing with nitrogen-vacancy centers in diamond
The negatively charged nitrogen-vacancy color center in diamond exhibits several remarkable properties, which make it widely used in magnetic field sensing. In particular, the magnetic field measurements can be traced back to frequency, which makes diamond sensors promising for high-precision curren...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2025-03-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0256419 |
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| _version_ | 1849739339799461888 |
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| author | Shao-Chun Zhang Long Zhao Ru-Jia Qiu Jia-Qi Geng Teng Tian Bo-Wen Zhao Yong Liu Long-Kun Shan Xiang-Dong Chen Guang-Can Guo Fang-Wen Sun |
| author_facet | Shao-Chun Zhang Long Zhao Ru-Jia Qiu Jia-Qi Geng Teng Tian Bo-Wen Zhao Yong Liu Long-Kun Shan Xiang-Dong Chen Guang-Can Guo Fang-Wen Sun |
| author_sort | Shao-Chun Zhang |
| collection | DOAJ |
| description | The negatively charged nitrogen-vacancy color center in diamond exhibits several remarkable properties, which make it widely used in magnetic field sensing. In particular, the magnetic field measurements can be traced back to frequency, which makes diamond sensors promising for high-precision current measurement. Here, we develop a quantum current transformer (QCT) with four fiberized diamond sensors uniformly toroidally distributed in a magnetic shielding loop. We proposed fluorescence signal treatments of frequency-doubled conversion and weighted averaging under a zero bias magnetic field, which can reconstruct the 50 Hz alternating-current waveform. A maximum accuracy of 0.05% for AC amplitude measurements is achieved over a highly linear range of 0–1000 A. In addition, tracing two resonance frequencies simultaneously enabled the suppression of temperature drift in the current measurement. Finally, we apply this QCT to current monitoring in a 110 kV substation, verifying its practicality in the power supply network. Such a QCT can provide a robust and scalable platform for current quantum sensing technologies for high-voltage power transmission while reducing the complexity of operation and maintenance. |
| format | Article |
| id | doaj-art-db2eeab307ee4b3e9be6cbc858dc82f3 |
| institution | DOAJ |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-db2eeab307ee4b3e9be6cbc858dc82f32025-08-20T03:06:18ZengAIP Publishing LLCAPL Photonics2378-09672025-03-01103036117036117-1010.1063/5.0256419High-voltage current sensing with nitrogen-vacancy centers in diamondShao-Chun Zhang0Long Zhao1Ru-Jia Qiu2Jia-Qi Geng3Teng Tian4Bo-Wen Zhao5Yong Liu6Long-Kun Shan7Xiang-Dong Chen8Guang-Can Guo9Fang-Wen Sun10CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaElectric Power Quantum Sensing Joint Laboratory of Anhui Province, State Grid Anhui Electric Power Research Institute, Hefei 230601, ChinaElectric Power Quantum Sensing Joint Laboratory of Anhui Province, State Grid Anhui Electric Power Research Institute, Hefei 230601, ChinaCAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaElectric Power Quantum Sensing Joint Laboratory of Anhui Province, State Grid Anhui Electric Power Research Institute, Hefei 230601, ChinaAnhui Guosheng Quantum Technology Co., Ltd., Hefei 230088, ChinaCAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaCAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaCAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaCAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaCAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaThe negatively charged nitrogen-vacancy color center in diamond exhibits several remarkable properties, which make it widely used in magnetic field sensing. In particular, the magnetic field measurements can be traced back to frequency, which makes diamond sensors promising for high-precision current measurement. Here, we develop a quantum current transformer (QCT) with four fiberized diamond sensors uniformly toroidally distributed in a magnetic shielding loop. We proposed fluorescence signal treatments of frequency-doubled conversion and weighted averaging under a zero bias magnetic field, which can reconstruct the 50 Hz alternating-current waveform. A maximum accuracy of 0.05% for AC amplitude measurements is achieved over a highly linear range of 0–1000 A. In addition, tracing two resonance frequencies simultaneously enabled the suppression of temperature drift in the current measurement. Finally, we apply this QCT to current monitoring in a 110 kV substation, verifying its practicality in the power supply network. Such a QCT can provide a robust and scalable platform for current quantum sensing technologies for high-voltage power transmission while reducing the complexity of operation and maintenance.http://dx.doi.org/10.1063/5.0256419 |
| spellingShingle | Shao-Chun Zhang Long Zhao Ru-Jia Qiu Jia-Qi Geng Teng Tian Bo-Wen Zhao Yong Liu Long-Kun Shan Xiang-Dong Chen Guang-Can Guo Fang-Wen Sun High-voltage current sensing with nitrogen-vacancy centers in diamond APL Photonics |
| title | High-voltage current sensing with nitrogen-vacancy centers in diamond |
| title_full | High-voltage current sensing with nitrogen-vacancy centers in diamond |
| title_fullStr | High-voltage current sensing with nitrogen-vacancy centers in diamond |
| title_full_unstemmed | High-voltage current sensing with nitrogen-vacancy centers in diamond |
| title_short | High-voltage current sensing with nitrogen-vacancy centers in diamond |
| title_sort | high voltage current sensing with nitrogen vacancy centers in diamond |
| url | http://dx.doi.org/10.1063/5.0256419 |
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