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Sensors 2016, 16(1), 63; doi:10.3390/s16010063

Contactless Inductive Bubble Detection in a Liquid Metal Flow

Institute of Fluid Dynamics, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstr. 400, Dresden 01328, Germany
School of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UK
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 30 October 2015 / Revised: 18 December 2015 / Accepted: 30 December 2015 / Published: 6 January 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [13253 KB, uploaded 6 January 2016]   |  


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. View Full-Text
Keywords: contactless inductive measurements; two phase flow; liquid metal; bubble detection; void fraction contactless inductive measurements; two phase flow; liquid metal; bubble detection; void fraction

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gundrum, T.; Büttner, P.; Dekdouk, B.; Peyton, A.; Wondrak, T.; Galindo, V.; Eckert, S. Contactless Inductive Bubble Detection in a Liquid Metal Flow. Sensors 2016, 16, 63.

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