共 24 条
High SNR magnetoelectric sensor with dual working modes for wideband magnetic field detection
被引:3
|作者:
Sun, Xuan
[1
]
Wu, Jingen
[1
]
Gao, Jieqiang
[1
]
Wang, Guanying
[2
]
Liang, Xianfeng
[2
]
Li, Fuchao
[3
]
Lin, Bomin
[1
]
Du, Yongjun
[1
]
Xu, Yiwei
[1
]
Huang, Hui
[2
]
Hu, Zhongqiang
[1
]
Guo, Jinghong
[2
]
Liu, Ming
[1
]
机构:
[1] Xi An Jiao Tong Univ, Engn Res Ctr Spin Quantum Sensor Chips, Sch Elect Sci & Engn,Univ Shaanxi Prov, State Key Lab Mfg Syst Engn,Elect Mat Res Lab,Key, Xian 710049, Peoples R China
[2] State Grid Smart Grid Res Inst Co LTD, Inst Elect Power Sensing Technol, Beijing 102209, Peoples R China
[3] State Grid Sichuan Elect Power Co, Chengdu 610041, Peoples R China
关键词:
Magnetoelectric effect;
Wideband;
Magnetic sensor;
High SNR;
LIMIT;
D O I:
10.1016/j.sna.2023.114904
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Magnetoelectric (ME) composites exhibit extremely high sensitivity for magnetic field at the fixed resonant frequency, due to the strong strain-mediated ME coupling. However, wideband magnetic field detection is still challenging, as the ME coefficient depends strongly on the frequency. In this work, we propose a magnetoelectric sensor composed of three ME units in series/parallel connections, which works at dual modes to extend the frequency range with high signal-to-noise ratio (SNR). The SNR is enhanced by about 22.68 dB and the bandwidth is broadened from 100 Hz to 1 kHz, with a high sensitivity for frequency conversion mode by series/ parallel connections. Limits of detections (LoDs) as low as 207 pT and 460 pT are demonstrated at 1 kHz and 100 kHz, respectively, showing promising applications in wideband magnetic field detection.
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页数:7
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