Low-frequency nanotesla sensitivity in Metglas/piezoelectric/carbon fiber/piezoelectric composites with active tip mass

Park, Chee Sung; Avirovik, Dragan; Bressers, Scott; Priya, Shashank

doi:10.1063/1.3552970

Cited by 11 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since bending modes are absent in symmetric laminates, we compare the resonance MEVC with that reported for asymmetric laminates. The q -graded samples in this study show an order of magnitude higher MEVC than for Metglas/piezoelectric sample with an active tip mass [ 24 ].…”

Section: Resultsmentioning

confidence: 99%

Sensitivity Enhancement in Magnetic Sensors Based on Ferroelectric-Bimorphs and Multiferroic Composites

Sreenivasulu

Петров

et al. 2016

Sensors

View full text Add to dashboard Cite

Multiferroic composites with ferromagnetic and ferroelectric phases have been studied in recent years for use as sensors of AC and DC magnetic fields. Their operation is based on magneto-electric (ME) coupling between the electric and magnetic subsystems and is mediated by mechanical strain. Such sensors for AC magnetic fields require a bias magnetic field to achieve pT-sensitivity. Novel magnetic sensors with a permanent magnet proof mass, either on a ferroelectric bimorph or a ferromagnetic-ferroelectric composite, are discussed. In both types, the interaction between the applied AC magnetic field and remnant magnetization of the magnet results in a mechanical strain and a voltage response in the ferroelectric. Our studies have been performed on sensors with a Nd-Fe-B permanent magnet proof mass on (i) a bimorph of oppositely-poled lead zirconate titanate (PZT) platelets and (ii) a layered multiferroic composite of PZT-Metglas-Ni. The sensors have been characterized in terms of sensitivity and equivalent magnetic noise N. Noise N in both type of sensors is on the order of 200 pT/√Hz at 1 Hz, a factor of 10 improvement compared to multiferroic sensors without a proof mass. When the AC magnetic field is applied at the bending resonance for the bimorph, the measured N ≈ 700 pT/√Hz. We discuss models based on magneto-electro-mechanical coupling at low frequency and bending resonance in the sensors and theoretical estimates of ME voltage coefficients are in very good agreement with the data.

show abstract

Section: Resultsmentioning

confidence: 99%

Sensitivity Enhancement in Magnetic Sensors Based on Ferroelectric-Bimorphs and Multiferroic Composites

Sreenivasulu

Петров

et al. 2016

Sensors

View full text Add to dashboard Cite

show abstract

“…To lower the resonance frequency of these MFC's, whilst maintaining the same dimensions, one can a) add an inertial tip mass -use of an active (i.e. magnetic) tip mass has been shown to improve ME performance and lower resonance [22], b) decrease stiffness of the support and c) decrease stiffness of the Magnetoelectric composite. The stiffness of the support, the Copper IDE kapton flexible circuit, can be adjusted by using a tape with less copper (less copper thickness, more space between copper lines, etc.…”

Section: Resultsmentioning

confidence: 99%

Magnetoelectric macro fiber composite

Varghese

Narayanan

Leber

et al. 2015

Sensors and Actuators A: Physical

Self Cite

View full text Add to dashboard Cite

This paper describes the fabrication and performance results of a magnetoelectric macro fiber composite (ME MFC). The magnetoelectric composite was fabricated by bonding a magnetostrictive layer to a piezoelectric layer using a novel approach of low temperature transient liquid phase (LTTLP) bonding. The composite was diced into 150 micron wide fibers and bonded to a custom designed copper flexible circuit using a spin coated low viscosity room temperature curing epoxy. ME MFC's with varying ferrite thicknesses of 0.6 mm and 0.5 mm were fabricated and characterized for energy harvesting. The composite with 0.6mm ferrite thickness achieved an open circuit voltage of 101 mV (ME voltage coefficient of 6740 mV/cmOe) and peak power of 3.1 nW across 356 kΩ matching load at 264 Hz.

show abstract

“…However, the values of a ME at resonant frequencies were still much larger than the values of the prior reports. 8,10 A theoretical model for ME bending mode laminates was then developed to predict the behavior of the laminates. Figure 2 describes the model of the bi-layered structure: To simplify the model, a 2-D bar was used to describe the mechanical performance of the ME bi-layer structure.…”

Section: Resultsmentioning

confidence: 99%

“…In order to apply the resonant ME effect at various frequencies, some approaches have been studied to tune the resonant frequency of ME composites. [8][9][10] In the prior investigations, however, the restrictive experimental conditions were required in these researches, such as double-side clamped edges. Otherwise, the resonant ME coefficients were not impressive which limit the performances of devices as well.…”

mentioning

confidence: 99%

Giant resonant magnetoelectric effect in bi-layered Metglas/Pb(Zr,Ti)O3 composites

Gao¹,

Hasanyan²,

Shen³

et al. 2012

Journal of Applied Physics

View full text Add to dashboard Cite

In this paper, giant resonant magnetoelectric (ME) effect in an unsymmetrical bi-layered Metglas/Pb(Zr,Ti)O3 ME composites with multi-push pull configuration that can be significantly tuned was investigated experimentally and theoretically. The actual measured and predicted results present the similar resonant frequency shifting behaviors for such ME composites: The resonant frequency can be varied from 70 Hz to 220 Hz by tip mass loading, where the ME voltage coefficients were over 250 V/cm-Oe. Moreover, the giant frequency-tunable resonant effect allowed us to design a 60 Hz magnetic field energy harvester to be capable of harvesting energy generated by electronic instruments working on a 60 Hz ac power supply.

show abstract

Low-frequency nanotesla sensitivity in Metglas/piezoelectric/carbon fiber/piezoelectric composites with active tip mass

Cited by 11 publications

References 8 publications

Sensitivity Enhancement in Magnetic Sensors Based on Ferroelectric-Bimorphs and Multiferroic Composites

Sensitivity Enhancement in Magnetic Sensors Based on Ferroelectric-Bimorphs and Multiferroic Composites

Magnetoelectric macro fiber composite

Giant resonant magnetoelectric effect in bi-layered Metglas/Pb(Zr,Ti)O3 composites

Contact Info

Product

Resources

About