Method and arrangement and computer program with program code means and computer program product for determining a control variable for a power input to a wire in a conductive heat treatment of the wire

摘要

Method for determining a control value for a power input to a wire in a conductive heat treatment of the wire, in which - by the controlled by the control variable power input, a glow current is generated in the wire, - a voltage and a current of the current flowing in the wire glow current are measured, wherein the voltage is measured using a measuring wire loop placed at least in a first subregion parallel to the wire, and wherein an analog voltage signal and an analog current signal are generated, - the analog voltage and the analog current signal are digitally sampled at a predeterminable frequency, wherein each sampling time is a digital voltage value corresponding to the analog voltage signal and a digital current value corresponding to the analog current signal is generated, the control variable is formed using at least one digital voltage value and one digital current value.