Signal conditioning and processing for metallic Hall sensors

被引：16

作者：

Entler, S. ^{[1
]}

Duran, I. ^{[1
]}

Sladek, P. ^{[1
]}

Vayakis, G. ^{[2
]}

Kocan, M. ^{[2
]}

机构：

[1] CAS, Inst Plasma Phys, Slovankou 3, Prague 18200 8, Czech Republic

[2] ITER Org, Route Vinon Sur Verdon,CS 90 046, F-13067 St Paul Les Durance, France

来源：

FUSION ENGINEERING AND DESIGN | 2017年 / 123卷

关键词：

Hall sensor; Lock-in; Synchronous detection; Current spinning; Hall effect; Planar hall effect suppression;

D O I：

10.1016/j.fusengdes.2017.04.106

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Two electronics prototypes for the ITER outer vessel steady-state magnetic field Hall sensors based on a lock-in signal processing and current spinning technique were developed. The prototypes, the first using a rectangular lock-in signal processing with sensor offset cancellation and the second employing advanced lock-in signal processing with sensor and electronics offset cancellation, were compared with a DC technique and commercial lock-in amplifier. The influence of long interconnection cables, white noise, and interfering planar Hall effect to a measurement accuracy was evaluated. The planar Hall voltage suppression by the current spinning technique was investigated. Whilst the rectangular lock-in amplifier prototype failed to meet the ITER accuracy requirement, the advanced lock-in amplifier prototype demonstrated required functionality and accuracy. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：783 / 786

页数：4

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