Three‐dimensional localization system for small magnetic dipoles
作者:
F. Incardona,
L. Narici,
I. Modena,
S. N. Erne`,
期刊:
Review of Scientific Instruments
(AIP Available online 1992)
卷期:
Volume 63,
issue 9
页码: 4161-4166
ISSN:0034-6748
年代: 1992
DOI:10.1063/1.1143228
出版商: AIP
数据来源: AIP
摘要:
We developed a system for localizing orthogonal triplets of small magnetic dipoles with an array of magnetometers. These triplets can be used to measure, in quasi‐real time, the position of an object. This system is particularly useful when used with superconducting biomagnetic multichannel detectors. We present here a complete numerical simulation of the system performances and the first experimental tests with a biomagnetic detector (an array of 37 superconducting magnetometers). This system can be operated at frequencies outside the range of interest for biomagnetic measurements (that is typically 10−2–103Hz). It features an accuracy of ±0.3 cm driving the triplet at a field intensity ≊10−12T. The speed of the algorithm allows for quasi‐real‐time operation (t∼ 10−1s).
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