Characterization of Metglas/poly(vinylidene fluoride)/Metglas magnetoelectric laminates for AC/DC magnetic sensor applications

Reis, S.; Silva, Marco Aurélio Pinto; Castro, Nélson; Correia, V.; Martins, P.; Lasheras, Andoni; Gutierrez, Junkal; Barandiarán, J.M.; Rocha, J. G.; Lanceros‐Méndez, S.

doi:10.1016/j.matdes.2015.12.086

Cited by 36 publications

(18 citation statements)

References 38 publications

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“…where H AC is the AC magnetic field generated by the coil, µ 0 the vacuum permeability, N the number of turns, a the radius of the coil in meters, I the electric current intensity in amperes and z the axial distance in meters from the center of the coil [35]. Based on the previous results, the ME characterization of the sensor was performed on the conditions that promote a higher coupling (higher magnetic AC field: I = 0.02 A and 0 mm distance to the coil).…”

Section: Resultsmentioning

confidence: 99%

Magnetic Proximity Sensor Based on Magnetoelectric Composites and Printed Coils

et al. 2020

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Magnetic sensors are mandatory in a broad range of applications nowadays, being the increasing interest on such sensors mainly driven by the growing demand of materials required by Industry 4.0 and the Internet of Things concept. Optimized power consumption, reliability, flexibility, versatility, lightweight and low-temperature fabrication are some of the technological requirements in which the scientific community is focusing efforts. Aiming to positively respond to those challenges, this work reports magnetic proximity sensors based on magnetoelectric (ME) polyvinylidene fluoride (PVDF)/Metglas composites and an excitation-printed coil. The proposed magnetic proximity sensor shows a maximum resonant ME coefficient (α) of 50.2 Vcm −1 Oe −1 , an AC linear response (R 2 = 0.997) and a maximum voltage output of 362 mV, which suggests suitability for proximity-sensing applications in the areas of aerospace, automotive, positioning, machine safety, recreation and advertising panels, among others.

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Section: Resultsmentioning

confidence: 99%

Magnetic Proximity Sensor Based on Magnetoelectric Composites and Printed Coils

et al. 2020

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“…In previously work, Reis et al reported a high sensitivity ME transducer based on Metglas/PVDF/Metglas (MPM) configuration. 18 It showed a large resonant MEVC of 190 V/cm·Oe, with a very high accuracy and sensitivity. On the other hand, Silva et al reported a PVDF/Vitrovac 4040 transducer which were bonded with epoxies with different elastic moduli to investigate the effect of the bonding layer type.…”

Section: Introductionmentioning

confidence: 95%

“…[14][15][16][17][18] It does not show the above shortcomings of conventional transducers and meet the wearable device demands of being flexible, lightweight, easy fabrication, large scale production and biocompatibility. 19 Actually, flexibility not only provides an additional function during application, but it also enables a more simply integration process on non-planar or even curved surfaces.…”

Section: Introductionmentioning

confidence: 99%

Flexible magnetoelectric transducer with high magnetic field sensitivity based on Metglas/poly(vinylidene fluoride) heterostructures

Long

Qiu

et al. 2017

AIP Advances

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In this paper, the flexible magnetoelectric (ME) transducer consisting of FeSiB (Metglas)/poly(vinylidene fluoride) (PVDF) is presented, whose ME coupling characteristics and ME sensing performance under different bend status have been investigated. It is found that an appropriate size of transducers is propitious to the ME coupling characteristics due to the demagnetization effect. In addition, with increase the bending angle (θ) of transducers from 0° to 50°, the magnetoelectric voltage coefficient (MEVC) shows a reduction from 240.42 to 26.44 V/cm·Oe and 13.1 to 2.11 V/cm·Oe, at the resonance and low-frequency (1 kHz), respectively. Meanwhile, the induced ME voltage have an excellent linear relationship to ac magnetic field. An ultrahigh magnetic field sensitivity of 1.22 V/Oe and 0.11 V/Oe have been found under θ = 0° and 50°, respectively, which are positively comparable to the highest reported in the most recent polymer-based ME transducers. Moreover, the transducers can maintain the MEVC stable after an additionally bending cycles up to 1000 times, indicating the full flexibility and high stability of the mentioned transducers. Obviously, it demonstrates that the proposed FeSiB/PVDF transducers have great potential of being applied to wearable devices.

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“…Furthermore, the correlation coefficient, accuracy and linearity obtained values were 0.995, 99.4% and 95.9% for the DC magnetic field sensor and 0.9998, 99.2% and 99.4% and for the ME AC magnetic field sensor. Consequently, the ME materials developed in such work can be used for pioneering AC/DC magnetic field sensors device applications [21]. Taking advantage of the same materials and incorporating a charge amplifier, an AC-RMS converter and a microcontroller on chip peripheric analogue to digital converter (ADC) it was developed of a DC magnetic field sensor with readout electronics (see Figure 5, adapted from [22]).…”

Section: Magnetic Field Sensormentioning

confidence: 99%

Metallic Glass / PVDF Magnetoelectric Laminates for Resonant Sensors and Actuators

Gutiérrez

Lasheras

Martins

et al. 2017

Preprint

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Among magnetoelectric (ME) heterostructures, ME laminates of the type Metglas-like / PVDF (magnetostrictive+piezoelectric constituents) have shown the highest induced ME voltages, usually detected at the magnetoelastic resonance of the magnetostrictive constituent. This ME coupling happens because of the high crosscorrelation coupling between magnetostrictive and piezoelectric material, and is usually associated with a promising application scenario for sensors or actuators. In this work we detail the basis of the operation of such devices, as well as some arising questions (as size effects) concerning their best performance. Also, some examples of their use as very sensitive magnetic fields sensors or innovative energy harvesting devices will be presented At the end, the challenges, future perspectives and technical difficulties that will determine the success of ME composites for sensor applications are discussed.

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Characterization of Metglas/poly(vinylidene fluoride)/Metglas magnetoelectric laminates for AC/DC magnetic sensor applications

Cited by 36 publications

References 38 publications

Magnetic Proximity Sensor Based on Magnetoelectric Composites and Printed Coils

Magnetic Proximity Sensor Based on Magnetoelectric Composites and Printed Coils

Flexible magnetoelectric transducer with high magnetic field sensitivity based on Metglas/poly(vinylidene fluoride) heterostructures

Metallic Glass / PVDF Magnetoelectric Laminates for Resonant Sensors and Actuators

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