Title :
On conductivity measurements at temperatures exceeding 1500 /spl deg/C
Author :
Korp, Joerg ; Maier, Wenzel ; Perko, Jochen ; Schmid, Andreas
Author_Institution :
Inst. of Ferrous Metall., Leoben Univ., Austria
Abstract :
Ferrous metallurgy with light arc furnaces using conducting slag has working temperatures well over 1500 degrees centigrade (1500 /spl deg/C). An essential parameter for the metallurgy process is the conductivity of the slag at these high temperatures. The precise measurement of the slag conductivity and the temperature in this range is a very demanding task for the mechanical design of the measurement system as well as for the layout of the measurement electronics. This paper describes the measurement system in mechanical and electrical design; in detail the specially developed differential measurement amplifiers (milli-volt amplifiers) are shown.
Keywords :
arc furnaces; conducting materials; design; electrical conductivity measurement; instrumentation amplifiers; iron alloys; metallurgy; slag; temperature measurement; conducting slag; conductivity measurements; differential measurement amplifiers; ferrous metallurgy; light arc furnaces; slag conductivity; temperature measurement; Conductivity measurement; Cooling; Current measurement; Differential amplifiers; Electric variables measurement; Electrodes; Mechanical variables measurement; Slag; Temperature measurement; Voltage;
Conference_Titel :
Industrial Electronics, 2005. ISIE 2005. Proceedings of the IEEE International Symposium on
Conference_Location :
Dubrovnik, Croatia
Print_ISBN :
0-7803-8738-4
DOI :
10.1109/ISIE.2005.1529077
