A Mode-Localized Lorentz Force Magnetometer with 1.6μT/√Hz Resolution

Zimu Yan, Yongcun Hao, Wenmu Li, Zhao Zhang, Honglong Chang

科研成果: 书/报告/会议事项章节会议稿件同行评审

16 引用 (Scopus)

摘要

This paper for the first time reports a resonant magnetometer based on the mode localization phenomenon. The proposed sensor utilizes a 3 degrees-of-freedom (DoF) weakly coupled resonators (WCRs) as the mechanical sensing element, with massive grill structures on both sides for converting magnetic field strength to stiffness perturbation. Stiffness perturbation will cause a drastic variation in the mode shape owing to the mode localization phenomenon. We use the amplitude ratio (AR) instead of the frequency as the readout metric, and the sensitivity of AR is 7800 times higher than that of frequency. And the best resolution of the magnetometer is 1.6μT/√Hz in the range of 90mT.

源语言英语
主期刊名2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII
出版商Institute of Electrical and Electronics Engineers Inc.
1815-1818
页数4
ISBN(电子版)9781728120072
DOI
出版状态已出版 - 6月 2019
活动20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII - Berlin, 德国
期限: 23 6月 201927 6月 2019

出版系列

姓名2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII

会议

会议20th International Conference on Solid-State Sensors, Actuators and Microsystems and Eurosensors XXXIII, TRANSDUCERS 2019 and EUROSENSORS XXXIII
国家/地区德国
Berlin
时期23/06/1927/06/19

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