Experiments on wireless measurement of anode currents in Hall cells

Daniel Artemus Steingart, James W. Evans, Paul K. Wright, Donald Ziegler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

The currents of individual anodes provide information on Hall cells, e.g. the occurrence of "metal roll". These currents are usually measured by voltage drops along anode rods but this is inconvenient for routine monitoring of pots because of the need to change anodes, plus the hazards of draping signal wires around. Experiments have been carried out on wireless measurement of anode currents. Hall effect probes measured magnetic fields, reflecting mostly the current in the nearby rod. Signals were relayed wirelessly to a laptop some distance from the pot. measurements have been carried out on both pots with pair-controlled anodes and pots with anodes on a fixed bridge. For the former, comparison with independent measurement is easily possible (from voltage drop along the anode flex). Although at the experimental stage, this investigation has served to show that wireless measurements agree roughly with other measurements; wireless measurements reveal metal roll and incipient anode effects.

Original languageEnglish (US)
Title of host publicationLight Metals 2008 - Proceedings of the technical sessions presented by the TMS Aluminum Committee at the TMS 2008 Annual Meeting and Exhibition
Pages333-338
Number of pages6
StatePublished - 2008
EventLight Metals 2008 - New Orleans, LA, United States
Duration: Mar 9 2008Mar 13 2008

Publication series

NameTMS Light Metals
ISSN (Print)0147-0809

Other

OtherLight Metals 2008
CountryUnited States
CityNew Orleans, LA
Period3/9/083/13/08

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Metals and Alloys
  • Materials Chemistry

Keywords

  • Anode effect
  • Anodes
  • Hall-Heroult cells
  • Wireless sensing

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  • Cite this

    Steingart, D. A., Evans, J. W., Wright, P. K., & Ziegler, D. (2008). Experiments on wireless measurement of anode currents in Hall cells. In Light Metals 2008 - Proceedings of the technical sessions presented by the TMS Aluminum Committee at the TMS 2008 Annual Meeting and Exhibition (pp. 333-338). (TMS Light Metals).