Magnetoelectric Antenna for Miniaturized Acoustic Noise Dosimetry Applications

Nasrollahpour, Mehdi; Romano, Anthony; Sun, Neville; Zaeimbashi, Mohsen; Matyushov, Alexei; Liang, Xianfeng; Chen, Huaihao; Abrishami, Seyed Mahdi Seyed; Martos-Repath, Isabel; Emam, Shadi; Sun, Nian X.

doi:10.1109/lsens.2021.3109529

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…Owing to their multifunctional behavior, ME composites have found extensive use in a plethora of applications involving sensors, energy harvesters, power converters, and in biomedical applications [7][8][9][10]. Amidst use of ME composites in various sensor applications such as position sensor [11], angle sensor [12], current sensor [13], pressure sensor [14], speed sensor [15], magnetometer [16], vehicle detection sensor [17] and dosimeter [18], ME composites are conveniently used in magnetic field detection sensors due to their inherent nature of sensing an external magnetic field and providing a corresponding readable electrical output.…”

Section: Introductionmentioning

confidence: 99%

Thermally stable multi-directional magnetoelectric based embedded magnetic sensor

Kumar

Chelvane

Arockiarajan

2023

Smart Mater. Struct.

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Owing to the multifunctional behavior possessed by magnetoelectric (ME) composites, they are a sought after materials for various magnetic ﬁeld sensing applications. This article proposes a three-directional magnetoelectric based embedded magnetic sensor which has been fabricated using the press-ﬁt technique. The employed fabrication method negates the use of epoxy in the ME sensor thus enabling its use at elevated temperatures in excess of 100ﬃC. To establish the relative efﬁcacy of embedded sensor over the conventional layered structure, a layered sensor has also been fabricated and tested. The fabricated sensors are tested using an experimental setup capable of producing ac and dc bias magnetic ﬁelds in three coordinate directions. Experiments are performed for various dc magnetic ﬁeld conditions including x, y, z directions and their simultaneous combinations. Under all testing conditions, the embedded sensor shows a signiﬁcantly high response as compared to its layered counterpart. Moreover, a 67 % increase in sensing distance is observed in case of embedded sensor over the layered structure. Additionally, the effect of magnetic ﬁeld generated by double magnet system and single magnet system on the sensor performance has also been demonstrated, wherein the embedded sensor is observed to be marginally affected whereas the layered sensor is adversely affected. Finally, similar measurements are performed at elevated temperatures up to 100ﬃC and it is observed that the novel embedded sensor has reliable sensing capabilities in aggravated thermal environments even in excess of 100ﬃC, whereas, the layered sensor loses its sensing capabilities above 50ﬃC. Thus, the proposed 3-directional embedded magnetic sensor offers a better response under all conditions of magnetic ﬁeld and temperature over the layered counterpart and can thus be a reliable alternative for the latter.

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Section: Introductionmentioning

confidence: 99%

Thermally stable multi-directional magnetoelectric based embedded magnetic sensor

Kumar

Chelvane

Arockiarajan

2023

Smart Mater. Struct.

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“…Owing to their popularity and extensive research, ME composites have found use in a plethora of applications [14][15][16][17]. Notably, one such application is in the fabrication of wide variety of sensors in the form of position sensor [18], angle sensor [19], current sensor [20], pressure sensor [21], speed sensor [22], angular velocity sensor [23], magnetometer [24], tachometer [25], vehicle detection sensor [26] and dosimeter [27]. With regard to actuators, these can provide mechanical actuation as well as serve as feedback mechanisms owing to the presence of the piezoelectric phase and thus accurately control the actuation behavior [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Epoxy-free fabrication techniques for layered/2-2 magnetoelectric composite: a review

Kumar

Arockiarajan²

2022

Smart Mater. Struct.

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Layered or 2-2 conﬁguration magnetoelectric (ME) composites have gained signiﬁcant interest in the last few decades owing to their ease of fabrication and relatively high ME output realizable at room temperature. Conventionally, layered ME composites are fabricated by bonding the constituent magnetostrictive and piezoelectric layers via an epoxy or adhesive. Thus, the epoxied interface acts as the medium of strain transfer between the constituent layers resulting in the ME effect. However, the presence of epoxy makes the composite prone to limitations such as reduced device life due to aging epoxy, reduced strain transfer efﬁcacy due to low stiffness of epoxy, and degradation of composite properties at elevated temperatures due to the low glass transition temperature of epoxy material. Thus, various epoxy-free methods for layered or 2-2 type ME composite fabrication have been developed in the last two decades to circumvent these limitations. These methods include co-ﬁring technique, electroless deposition, electrodeposition, shrink-ﬁt, and press-ﬁt. Each of these methods has tried to mitigate the disadvantages of its predecessors, however posing its own set of limitations. This review article captures the evolutionary journey of the development of each of these aforementioned techniques in a chronological sequence by highlighting the advantages and disadvantages offered by each of them. Subsequently, a brief overview of state of the art has been provided in summary, followed by a discussion on the potential avenues that may be probed further to improve the available epoxy-free fabrication techniques for layered or 2-2 ME composites.

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“…Acoustic strain powered antenna has the advantages of small volume, easy integration and simple impedance matching network. It has broad application prospects in the fields of miniature brain implants, energy harvesting, underwater communications and medical devices [12][13][14][15]. At present, the development of communication technology based on acoustic strain powered antenna is inadequate.…”

Section: Introductionmentioning

confidence: 99%

Design of multi-band and high radiation intensity piezoelectric antenna based on external circuit

Zhang

Yan

Dong

et al. 2022

Int. J. Microw. Wireless Technol.

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This paper presents a novel method to improve the working bandwidth and radiation intensity of piezoelectric antenna by using external circuit. This method makes the piezoelectric antenna combined with roles of high radiation intensity and multiple resonant frequencies without changing the structural size of the piezoelectric antenna. The experimental results show that, compared with the original piezoelectric antenna, the tuning range of the resonant frequency of the piezoelectric antenna caused by the series capacitance and inductance is +13.6 and −24%, respectively. The series inductance will produce new resonance frequency, which provides a new method for the multi-band operation of the piezoelectric antenna. The LLC (series and parallel circuit) composite circuit can increase the number of resonant frequencies of the piezoelectric antenna from 1 to 3, and the S11 at the resonant frequencies are all lower than −10 dB, and the radiated magnetic field of the piezoelectric antenna is increased by 42.3% at least. This method makes the piezoelectric antenna have the dual functions of high radiation intensity and multi-band, which has great significance for broadening the application field of piezoelectric antenna.

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Magnetoelectric Antenna for Miniaturized Acoustic Noise Dosimetry Applications

Cited by 7 publications

References 13 publications

Thermally stable multi-directional magnetoelectric based embedded magnetic sensor

Thermally stable multi-directional magnetoelectric based embedded magnetic sensor

Epoxy-free fabrication techniques for layered/2-2 magnetoelectric composite: a review

Design of multi-band and high radiation intensity piezoelectric antenna based on external circuit

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