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High-resolution current sensor utilizing nanocrystalline alloy and magnetoelectric laminate composite
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10.1063/1.4763570
/content/aip/journal/rsi/83/11/10.1063/1.4763570
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/11/10.1063/1.4763570

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the proposed current sensor.

Image of FIG. 2.
FIG. 2.

Simulated magnetic field strength of the internal Terfenol-D is illustrated from various distances of the air gap when the strength of current through the sensor is assigned to 1 A.

Image of FIG. 3.
FIG. 3.

Side view of the magnetic circuit of each divided segment.

Image of FIG. 4.
FIG. 4.

Induced voltage as a function of ac current at the frequency of 50 Hz.

Image of FIG. 5.
FIG. 5.

Resolution of the sensor to small current step-changes.

Image of FIG. 6.
FIG. 6.

Time stability and uncertainty of the sensor within 72 h.

Image of FIG. 7.
FIG. 7.

Induced voltage responses of the proposed current sensor and an induction coil as a function of the drive frequency of an applied vortex magnetic field for 1 Hz < f < 20 kHz; the coil has the same size as the proposed sensor and is wrapped around the current-carrying conductor for comparison.

Tables

Generic image for table
Table I.

Material parameters of Terfenol-D, PZT, and FeCuNbSiB.

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/content/aip/journal/rsi/83/11/10.1063/1.4763570
2012-11-02
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: High-resolution current sensor utilizing nanocrystalline alloy and magnetoelectric laminate composite
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/11/10.1063/1.4763570
10.1063/1.4763570
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