Patent ID: 8412474
Filing Date: 2013-04-02
Classification: B65G,C21C,F27B,F27D,H05B,Y02P

Abstract:
1. A method for determining a radiation measure for thermal radiation which originates from an arc and strikes a boundary of the arc furnace, using a signal processor, wherein the arc burns between an electrode and a material to be melted, comprising: detecting an electrode current which is supplied to the electrode, detecting structure-borne sound oscillations of the arc furnace, determining with the signal processor a current evaluation signal, which is associated with a frequency range of the detected electrode current, based at least in part on the detected electrode current, determining with the signal processor an oscillation evaluation signal which is associated with a frequency range of the detected structure-borne sound oscillations, based at least in part on the detected structure-borne sound oscillations, and calculating with the signal processor a quotient of the oscillation evaluation signal and current evaluation signal as a radiation measure for at least one frequency which is common to the detected electrode current and the detected structure-borne sound oscillations.