title: Contactless Inductive Bubble Detection in a Liquid Metal Flow.
abstract: The detection of bubbles in liquid metals is important for many technical applications. The opaqueness and the high temperature of liquid metals set high demands on the measurement system. The high electrical conductivity of the liquid metal can be exploited for contactless methods based on electromagnetic induction. We will present a measurement system which consists of one excitation coil and a pickup coil system on the opposite sides of the pipe. With this sensor we were able to detect bubbles in a sodium flow inside a stainless steel pipe and bubbles in a column filled with a liquid Gallium alloy.
authors.affiliation: Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, Dresden 01328, Germany. th.gundrum@hzdr.de.
authors.forename: Thomas
authors.initials: T
authors.lastname: Gundrum
authors.affiliation: Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, Dresden 01328, Germany. buettnerphilipp@gmx.de.
authors.forename: Philipp
authors.initials: P
authors.lastname: Büttner
authors.affiliation: School of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UK. bachiruk@hotmail.com.
authors.forename: Bachir
authors.initials: B
authors.lastname: Dekdouk
authors.affiliation: School of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UK. a.peyton@manchester.ac.uk.
authors.forename: Anthony
authors.initials: A
authors.lastname: Peyton
authors.affiliation: Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, Dresden 01328, Germany. t.wondrak@hzdr.de.
authors.forename: Thomas
authors.initials: T
authors.lastname: Wondrak
authors.affiliation: Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, Dresden 01328, Germany. v.galindo@hzdr.de.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Galindo
authors.affiliation: Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, Dresden 01328, Germany. s.eckert@hzdr.de.
authors.forename: Sven
authors.initials: S
authors.lastname: Eckert
keywords: bubble detection; contactless inductive measurements; liquid metal; two phase flow; void fraction