Signal-to-Noise Ratio in Cantilever Magnetoelectric Sensors
作者： Jascha Lukas Gugat , Matthias C. Krantz , Julius Schmalz , Martina Gerken
DOI: 10.1109/TMAG.2016.2557305
关键词:
摘要: The signal-to-noise ratio (SNR) is investigated for compound magnetoelectric (ME) sensors on cantilever substrates (SUBs) the detection of low-level magnetic fields. Operated at mechanical resonance, field deforming magnetostrictive (MS) layer causes a resonant bending-mode response in ME cantilever. deformation piezoelectric (PE) allows extraction voltage or charge signal. Here, influence PE thickness and electrode length SNR evaluated theoretical study. signal levels are calculated using finite-element method. Noise voltages including intrinsic electric noise sensor amplifier case amplifier. AlN PZT considered as materials. For geometry with 10 mm-length, mm-width, 300 $\mu \text{m}$ -thick silicon SUB Metglas MS 2 thickness, limit (LOD) pT-range predicted $2~\mu layers, while LOD approximately one order magnitude worse. A doubling obtained choosing an upper covering only fixed side Operation shows least $\sim 50$ % better values compared amplification.
sci-hub.se 参考文章(13)
John F. Blackburn, Marian Vopsaroiu, Markys G. Cain, Verified finite element simulation of multiferroic structures: Solutions for conducting and insulating systems Journal of Applied Physics. ,vol. 104, pp. 074104- ,(2008) , 10.1063/1.2988183
Jascha Lukas Gugat, Matthias C. Krantz, Martina Gerken, Two-Dimensional Versus Three-Dimensional Finite-Element Method Simulations of Cantilever Magnetoelectric Sensors IEEE Transactions on Magnetics. ,vol. 49, pp. 5287- 5293 ,(2013) , 10.1109/TMAG.2013.2260346
Christine Kirchhof, Matthias Krantz, Iulian Teliban, Robert Jahns, Stephan Marauska, Bernhard Wagner, Reinhard Knöchel, Martina Gerken, Dirk Meyners, Eckhard Quandt, Giant magnetoelectric effect in vacuum Applied Physics Letters. ,vol. 102, pp. 232905- ,(2013) , 10.1063/1.4810750
Yu Hui, Tianxiang Nan, Nian X. Sun, Matteo Rinaldi, Ultra-sensitive magnetic field sensor based on a low-noise magnetoelectric MEMS-CMOS oscillator international frequency control symposium. pp. 1- 3 ,(2014) , 10.1109/FCS.2014.6859915
Xin Zhuang, Marc Lam Chok Sing, Christophe Dolabdjian, Yaojin Wang, Peter Finkel, Jiefang Li, Dwight Viehland, Mechanical Noise Limit of a Strain-Coupled Magneto(Elasto)electric Sensor Operating Under a Magnetic or an Electric Field Modulation IEEE Sensors Journal. ,vol. 15, pp. 1575- 1587 ,(2015) , 10.1109/JSEN.2014.2363880
Xu Sun, Lijun Jiang, Philip W.T. Pong, Magnetic flux concentration at micrometer scale Microelectronic Engineering. ,vol. 111, pp. 77- 81 ,(2013) , 10.1016/J.MEE.2013.01.063
Yaojin Wang, Jiefang Li, D. Viehland, Magnetoelectrics for magnetic sensor applications: status, challenges and perspectives Materials Today. ,vol. 17, pp. 269- 275 ,(2014) , 10.1016/J.MATTOD.2014.05.004
Z. Fang, S. G. Lu, F. Li, S. Datta, Q. M. Zhang, M. El Tahchi, Enhancing the magnetoelectric response of Metglas/polyvinylidene fluoride laminates by exploiting the flux concentration effect Applied Physics Letters. ,vol. 95, pp. 112903- ,(2009) , 10.1063/1.3231614
M Iꎬ Bichurin, VM Petrov, G Srinivasan, None, Theory of low-frequency magnetoelectric coupling in magnetostrictive-piezoelectric bilayers Physical Review B. ,vol. 68, pp. 054402- ,(2003) , 10.1103/PHYSREVB.68.054402
R. Jahns, H. Greve, E. Woltermann, E. Quandt, R. H. Knochel, Noise Performance of Magnetometers With Resonant Thin-Film Magnetoelectric Sensors IEEE Transactions on Instrumentation and Measurement. ,vol. 60, pp. 2995- 3001 ,(2011) , 10.1109/TIM.2011.2122410