An electrical impedance tomography microscope

被引：0

作者：

Griffiths, H. ^{[1
]}

Tucker, M.G. ^{[2
]}

Sage, J. ^{[2
]}

Herrenden-Harker, W.G. ^{[2
]}

机构：

[1] Department of Medical Physics and Bioengineering, University Hospital of Wales, Heath Park, Cardiff CF4 4XW, United Kingdom

[2] Department of Physics and Astronomy, University of Wales, College of Cardiff, The Parade, Cardiff CF2 3YB, United Kingdom

来源：

| 1996年 / Institute of Physics Publishing卷 / 17期

关键词：

Electric impedance - Electric impedance measurement - Printed circuit boards - Electric impedance tomography;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A circular array of 16 electrodes has been constructed for use as an electrical impedance tomography (EIT) microscope. The electrodes were made from 60 μm diameter gold wires anchored to a printed circuit board. The internal diameter of the array was 0.9 mm giving a theoretical spatial resolution of about 100 μm. For EIT imaging, the array was connected to an imaging system operating at 82 kHz. Static images of conducting and insulating filaments (copper wire and human hair) in saline solution were obtained as well as dynamic imaging sequences of glass microspheres migrating through the array. The interelectrode impedance was typically 5 kΩ and the transimpedances ranged from 14 to 210 Ω. © 1996 IOP Publishing Ltd.

引用

共 50 条

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