Data Acquisition and Processing of Weak Low-Frequency Magnetic Signals

被引:1
作者
Men, Shouqiang [1 ,2 ]
Resagk, Christian [2 ]
机构
[1] Xian Technol Univ, Dept Math & Phys, Xian 710032, Peoples R China
[2] Tech Univ Ilmenau, Dept Mech Engn, D-98684 Ilmenau, Germany
来源
MECHATRONIC SYSTEMS AND AUTOMATION SYSTEMS | 2011年 / 65卷
关键词
data acquisition and processing; fluxgate sensor; magnetic field tomography; FIELD SENSOR; CALIBRATION;
D O I
10.4028/www.scientific.net/AMM.65.299
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A simple calibration system for magnetic field sensors was designed, and experiments were carried out to calibrate two-dimensional fluxgate sensors and a sensor ring composed of eight fluxgate sensors. Fast Fourier Transforms and trapezoidal numerical integrals were applied to deal with the raw signals. It is found that it is not suitable to apply fast Fourier Transforms only to deal with signals with several peaks close to each other, but trapezoidal numerical integrals should also be used in combination with the FFT method.
引用
收藏
页码:299 / +
页数:2
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