Measurement of Ferromagnetic Slabs Permeability Based on a Novel Planar Triple-Coil Sensor

被引：36

作者：

Lu, Mingyang ^{[1
]}

Meng, Xiaobai ^{[2
]}

Chen, Liming ^{[1
]}

Huang, Ruochen ^{[1
]}

Yin, Wuliang ^{[1
]}

Peyton, Anthony ^{[1
]}

机构：

[1] Univ Manchester, Sch Elect & Elect Engn, Manchester M13 9PL, Lancs, England

[2] Univ Manchester, Sch Environm Educ & Dev, Manchester M13 9PL, Lancs, England

来源：

IEEE SENSORS JOURNAL | 2020年 / 20卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

Sensors; Permeability measurement; Permeability; Current measurement; Transmitters; Receivers; Inductance; lift-off effects; inverse algorithm; single-frequency eddy current sensor; ferromagnetic slabs; non-destructive evaluation; PULSED EDDY-CURRENT; CONDUCTIVITY; FRACTION; PLATES; DEFECT;

D O I：

10.1109/JSEN.2019.2957212

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Eddy current methods are wildly used for measuringthe electromagnetic property of ferromagneticsamples due to its high sensitivities and portability (when using the remote electromagnetic sensor). However, in diverse applications, the eddy current measurement is always hampered by the lift-off variation - the gap between the sensing probe and the sample. In this paper, the measurement error of the permeability caused by the lift-off variation could be significantly reduced when using a developed planar triple-coil sensor. An inverse algorithm, the single-frequency eddy current algorithm is established for the evaluation of the permeability by referring to the phase of themeasured impedance or inductance. Based on the experiments of several ferromagnetic samples when using the developed sensor and inverse algorithm, the measured permeability is proved can be almost immune to the lift-off variations.

引用

页码：2904 / 2910

页数：7

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