Electromagnetic Field Computation of Helmholtz Coils for Sensitivity Analysis of GMR Sensor

Author

Mukhopadhyay, S.C.

Author_Institution

Massey Univ., Palmerston North

fYear

0

fDate

0-0 0

Firstpage

195

Lastpage

195

Abstract

The main purpose of this work is to simulate the possibility of measurement of density dependent relative magnetic permeability of ferrofluid using a high performance giant magneto-resistive (GMR) sensor. The circular type Helmholtz coils have been used for the generation of uniform magnetic field inside the region under consideration. The relative magnetic permeability of ferrofluid is very close to 1 and is dependent on the density of magnetic particles. The electromagnetic field has been analysed to determine the sensitivity of the GMR sensor

Keywords

Helmholtz equations; coils; electric sensing devices; electromagnetic fields; giant magnetoresistance; magnetic fields; magnetic fluids; magnetic particles; magnetic permeability; magnetic sensors; sensitivity analysis; GMR sensor; Helmholtz coils; density dependent relative magnetic permeability; electromagnetic field computation; ferrofluids; giant magnetoresistive sensors; magnetic particle density; sensitivity analysis; uniform magnetic field; Coils; Computational modeling; Density measurement; Electromagnetic fields; Electromagnetic measurements; Magnetic field measurement; Magnetic particles; Magnetic sensors; Permeability measurement; Sensitivity analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1632987

Filename

1632987