Analysis of magnetic marker localization method for non-invasive detecting capsule with batteries in GI tract

Author

He, Wenhui ; Yan, Guozheng ; Guo, Xudong

Author_Institution

Inst. of Quality&Safety Eng., China Jiliang Univ., Hangzhou, China

fYear

2009

fDate

16-19 Aug. 2009

Firstpage

42459

Lastpage

12479

Abstract

The paper discusses the magnetic marker localization method utilizing four tri-axis magnetoresistive sensors for non-invasive detecting capsule in GI tract. Because two silver oxide button batteries in capsule, which outer shell is made from high permeable Co-Ni-Fe alloy, supply power for all modules of the capsule, and the alloy is strong permeable, the batteries will affect magnetic localization precise. Authors employ magnetic dipole theory and magnetic field superposition principle, deducts math model as considering the batteries´ affects. Experiment shows the calculation model is feasible.

Keywords

biomedical equipment; biomedical measurement; magnetic sensors; magnetoresistive devices; battery powered GI tract capsule; cobalt nickel iron alloy; gastrointestinal tract; magnetic dipole theory; magnetic field superposition principle; magnetic marker localisation method; noninvasive detection; silver oxide button batteries; triaxis magnetoresistive sensors; Battery charge measurement; Gastrointestinal tract; Magnetic analysis; Magnetic flux; Magnetic materials; Magnetic sensors; Permanent magnets; Physiology; Radio frequency; Workstations; GIIntroduction; battery; capsule; localization; magnetic marker;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3863-1

Electronic_ISBN

978-1-4244-3864-8

Type

conf

DOI

10.1109/ICEMI.2009.5274308

Filename

5274308