Fluxgate can replace SQUID for lung diagnostics

Author

Platil, A. ; Ripka, P. ; Kaspar, P. ; Tipek, A. ; Svabova, K. ; Holusa, R.

Author_Institution

Fac. of El. Eng., Czech Tech. Univ., Prague, Czech Republic

Volume

1

fYear

2002

fDate

2002

Firstpage

321

Abstract

In this paper, a design of a magnetic fluxgate gradiometer and its application for magnetopneumography is described. Metallic dusts and fumes inhaled by industrial grinders and welders and deposited in their lungs can be magnetized by an intense DC field and subsequently detected by magnetometry. Traditionally, SQUIDs are used for such measurements. However, much cheaper fluxgate solution can bring useful results, as shown in this paper. The conducted in vitro and in vivo experiments have demonstrated the possibility of using this method for screening of professionals. Due to large variations in magnetic properties of coal dusts, this method is not suitable for examination of miners.

Keywords

biomedical measurement; fluxgate magnetometers; lung; patient diagnosis; ferromagnetic dusts; industrial grinders; industrial welders; lung diagnostics; magnetic fluxgate gradiometer; magnetopneumography; metallic dusts; metallic fumes; Coils; Grinding machines; Lungs; Magnetic cores; Magnetic field measurement; Magnetic sensors; Public healthcare; SQUIDs; Saturation magnetization; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensors, 2002. Proceedings of IEEE

Print_ISBN

0-7803-7454-1

Type

conf

DOI

10.1109/ICSENS.2002.1037108

Filename

1037108