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Measurement of magnetic flux density on a rotating distorted electrolyte–metal interface

Shouqiang Men1, Christian Resagk1, Marek Ziolkowski2, Milko Kuilekov2 and Hartmut Brauer2

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A novel experiment for characterization of liquid–solid interface deformation by measurement of magnetic flux density has been carried out. A single-axis fluxgate sensor is used to measure the distribution of radial- and z-components of magnetic field around a rotating cylindrical cell containing a solid copper cylinder with a sinusoidal surface and KOH solution above it. The signal from the magnetic sensor is collected by a data acquisition board and processed by fast Fourier transformation. The experimental results agree well with the theoretical predictions calculated by the finite element method, which reveals that the set-up is applicable to develop magnetic field tomography for reconstruction of interface deformation.


PACS

07.55.-w Magnetic instruments and components

82.45.Gj Electrolytes

07.07.Df Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing

41.20.Gz Magnetostatics; magnetic shielding, magnetic induction, boundary-value problems

02.30.Uu Integral transforms

02.70.Dh Finite-element and Galerkin methods

Subjects

Mathematical physics

Computational physics

Accelerators, beams and electromagnetism

Instrumentation and measurement

Chemical physics and physical chemistry

Dates

Issue 7 (July 2004)

Received 26 January 2004, in final form 20 April 2004

Published 16 June 2004



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