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Proceedings Paper

IR-based system for short-circuit detection during copper electrorefining process
Author(s): Esa Makipaa; Juha T. Tanttu; Henri Virtanen
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Paper Abstract

In this paper an infrared system for short-circuit detection in the copper electrorefining process is presented. The system consists of an IR-camera, a computer, radiomodems and software including the developed algorithm to process a thermal image. The basic component of the proposed system is an infrared camera mounted in an air-conditioned protection unit on a moving crane. The video output of the infrared camera is connected to the input of a framegrabber card in a computer. The framegrabber card with software captures a thermal image of the electrolytic cell, then processes it to locate the hot spots (short-circuits in a cell). The inspection results are transferred directly by radio link to the control room to be printed and further processed. The system presented in this paper is a prototype that has been tested for several months. The test results indicate that strong short-circuits can be detected with the proposed system as reliably as with a currently used manual method (gaussmeter). The advantages of the proposed system are easier and faster measurements (all cathodes in a cell can be measured remotely at the same time) and possibility to gather new process information.

Paper Details

Date Published: 8 March 1999
PDF: 8 pages
Proc. SPIE 3652, Machine Vision Applications in Industrial Inspection VII, (8 March 1999); doi: 10.1117/12.341134
Show Author Affiliations
Esa Makipaa, Tampere Univ. of Technology (Finland)
Juha T. Tanttu, Tampere Univ. of Technology (Finland)
Henri Virtanen, Outokumpu Harjavalta Metals Oy Copper Refinery (Finland)

Published in SPIE Proceedings Vol. 3652:
Machine Vision Applications in Industrial Inspection VII
Kenneth W. Tobin Jr.; Ning S. Chang, Editor(s)

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