Theoretical aspects concerning the calculus possibilities of magnetic fluid core coils

Author

Popa, Nicolae Calin ; Siblini, Ali ; Jorat, Luc

Author_Institution

Dispositifs et Instrum. en Optoeletron. et Micro-ondes, Univ. Jean Monnet, Saint-Etienne, France

fYear

2003

fDate

5-7 May 2003

Firstpage

143

Lastpage

148

Abstract

The paper investigates the calculus possibilities of coils inductances for the construction of inductive transducers with magnetic fluid (MF) for aerodynamic measurements, acceleration and inclination angle. These transducers have as essential electrical components one or two pairs of identical coils of circular cross section, uniformly wound. The carcasses of every pair of coils have the role of vertical cylindrical reservoir and communicate at the bottom creating a vertical U-shaped tube half filled with MF. The MF has the role of magnetic liquid core for the electrical coils. The paper presents a comparative study between four different calculus methods of the inductance versus the level of MF (one numerical simulation method, and, three different analytical methods based on the images method for a non-homogeneous medium).

Keywords

acceleration; aerodynamics; magnetic cores; magnetic fluids; numerical analysis; transducers; U-shaped cylindrical tube reservoir; acceleration; aerodynamic measurement; analytical method; calculus methods; electrical coils; electrical component; inductive transducers; magnetic fluid core coil inductance; nonhomogeneous medium; numerical simulation method; Acceleration; Accelerometers; Aerodynamics; Calculus; Coils; Magnetic cores; Magnetic liquids; Reservoirs; Transducers; Wounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Design, Test, Integration and Packaging of MEMS/MOEMS 2003. Symposium on

Print_ISBN

0-7803-7066-X

Type

conf

DOI

10.1109/DTIP.2003.1287025

Filename

1287025