Measurement of magnetic noise in magnetoimpedance sensing element

被引：0
|
作者：
Antonov, Anatoliy S. [1 ]
Buznikov, Nikita A. [2 ]
Sultan-Zade, Timur T. [1 ]
Shkliaevimpedance, Alexey A. [3 ]
机构：
[1] IMPEDANCE JSC, Moscow 124527, Russia
[2] Sci & Res Inst Nat Gases & Gas Technol Gazprom VN, Leninsky Dist 142717, Moscow Region, Russia
[3] Decima LLC, Moscow 124498, Russia
来源：
MOSCOW INTERNATIONAL SYMPOSIUM ON MAGNETISM (MISM 2017) | 2018年 / 185卷
关键词：
GIANT MAGNETOIMPEDANCE; IMPEDANCE;
D O I：
10.1051/epjconf/201818502010
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A method for measurement of magnetic noise in magnetoimpedance sensing element is proposed. Glass-coated Co-based amorphous microwires with a slightly negative magnetostriction were used as the sensing element. The operation principle of the sensing element was based on the nonlinear off-diagonal magnetoimpedance, when field dependent higher harmonic components appeared in voltage in the pick-up coil wound around the microwire. The magnetic noise for the second harmonic in the pick-up coil voltage was studied. The dependences of the magnetic noise and the signal-to-noise ratio in the sensitive element on the current amplitude were analyzed. The noise performance of the second harmonic in the pick-up coil voltage was compared to that for a flux-gate sensing element.
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页数：4
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