FIELD: electrical engineering.
SUBSTANCE: one measures electrode voltage and current as well as the phase voltage direct component, with the hot melt bath depth determined in accordance with a mathematical expression. The invention essence consists in usage of the semi-conductor effect of the electrode contacting the hot melt. This effect results in appearance of a direct component in phase voltage which is registered with a special device. The bath depth and the hot melt quantity may be determined by the value of decline of the phase voltage direct component dependence on current.
EFFECT: increase of measurement promptness and accuracy.
3 dwg
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