An autonomous current-sensing system for elecric cord monitoring using magnetoelectric sensors

Zhang, Jitao; Wul, Jie; Yang, Qian; Wang, Xiaolei; Zheng, Xiaowan; Cao, Lingzhi

doi:10.1109/iemdc.2017.8002250

Cited by 6 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Magnetoelectric sensors have received significant attention recently [45] [46]. They are based on coupling between magnetostrictive and piezoelectric properties.…”

Section: Othermentioning

confidence: 99%

Contactless measurement of electric current using magnetic sensors

Ripka

2019

Tm - Technisches Messen

View full text Add to dashboard Cite

We review recent advances in magnetic sensors for DC/AC current transducers, especially novel AMR sensors and integrated fluxgates, and we make critical comparison of their properties. Most contactless electric current transducers use magnetic cores to concentrate the flux generated by the measured current and to shield the sensor against external magnetic fields. In order to achieve this, the magnetic core should be massive. We present coreless current transducers which are lightweight, linear and free of hysteresis and remanence. We also show how to suppress their weak point: crosstalk from external currents and magnetic fields.

show abstract

“…Magnetoelectric sensors have received significant attention recently [45] [46]. They are based on coupling between magnetostrictive and piezoelectric properties.…”

Section: Othermentioning

confidence: 99%

Contactless measurement of electric current using magnetic sensors

Ripka

2019

Tm - Technisches Messen

View full text Add to dashboard Cite

show abstract

“…Since the magnetic field and current are interrelated parameters, soon, naturally, an extensive number of articles [ 20 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ] and reviews [ 33 , 34 ] on ME current sensors appeared. Below we give a brief overview of the most famous works in this area.…”

Section: Introductionmentioning

confidence: 99%

Self-Biased Bidomain LiNbO3/Ni/Metglas Magnetoelectric Current Sensor

Бичурин

Петров

Leontiev

et al. 2020

Sensors

View full text Add to dashboard Cite

The article is devoted to the theoretical and experimental study of a magnetoelectric (ME) current sensor based on a gradient structure. It is known that the use of gradient structures in magnetostrictive-piezoelectric composites makes it possible to create a self-biased structure by replacing an external magnetic field with an internal one, which significantly reduces the weight, power consumption and dimensions of the device. Current sensors based on a gradient bidomain structure LiNbO3 (LN)/Ni/Metglas with the following layer thicknesses: lithium niobate—500 μm, nickel—10 μm, Metglas—29 μm, operate on a linear section of the working characteristic and do not require the bias magnetic field. The main characteristics of a contactless ME current sensor: its current range measures up to 10 A, it has a sensitivity of 0.9 V/A, its current consumption is not more than 2.5 mA, and its linearity is maintained to an accuracy of 99.8%. Some additional advantages of a bidomain lithium niobate-based current sensor are the increased sensitivity of the device due to the use of the bending mode in the electromechanical resonance region and the absence of a lead component in the device.

show abstract

“…With the advantages of magnetic bias-free and wide bandwidth, the ME sensor they produced in the shape of a concentric ring could achieve a high ME coefficient of 2.77 V/cm•Oe and a linear current sensitivity of 185 mV/A at the resonance frequency. Besides, Zhang et al [21] presented an autonomous current-sensing system consisting of a SmFe 2 /PZT/SmFe 2 self-biased ME composite and a Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 nanocrystalline flux concentrator for detecting weak current. Experimental results demonstrated that the presented sensor had a linear sensitivity of 152 mV/A at 50 Hz with a slight nonlinearity of 0.01%.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Field Sensing Based on Magnetoelectric Coupling of Ampere Force Effect With Piezoelectric Effect in Silver/Poly(Vinylidine Fluoride)/Silver Laminated Composite

Zhang

Yao

2020

IEEE Access

View full text Add to dashboard Cite

With the advantages of large piezoelectric constant, wide frequency response range and good flexibility, Poly(vinylidine fluoride) (PVDF) is receiving heightened attention as a promising alternative to traditional piezoelectric materials. This paper focuses on investigating the magnetoelectric effect of a three-layer composite consisting of a core layer of PVDF and two layers of silver-plated electrodes under the action of AC and DC magnetic fields. The resonance frequency of the measurement system is firstly determined to obtain the maximum magnetoelectric response. Then, the existence of magnetoelectric effect in the laminated sample is further verified, which is realized through the coupling of the piezoelectric effect and the Ampere forces caused by the eddy current under the DC bias magnetic field. The experimental results show that the magnetoelectric voltage has an excellent linear response to both AC and DC magnetic fields. The magnetoelectric voltage coefficient is obtained as 299.97 mV/cm•Oe at the resonance frequency under the DC magnetic field of 1000 Oe amplitude. Besides, the theoretical model of the magnetoelectric energy conversion is established, which matches well with the experimental results. Consequently, both AC and DC magnetic field sensing can be realized by observing the magnetoelectric voltage. Without requiring a magnetostrictive phase and power supply, the three-layer composite with a considerable magnetoelectric effect is promising for the application of online monitoring sensors used in the smart grid.

show abstract

An autonomous current-sensing system for elecric cord monitoring using magnetoelectric sensors

Cited by 6 publications

References 24 publications

Contactless measurement of electric current using magnetic sensors

Contactless measurement of electric current using magnetic sensors

Self-Biased Bidomain LiNbO3/Ni/Metglas Magnetoelectric Current Sensor

Magnetic Field Sensing Based on Magnetoelectric Coupling of Ampere Force Effect With Piezoelectric Effect in Silver/Poly(Vinylidine Fluoride)/Silver Laminated Composite

Contact Info

Product

Resources

About