The present invention describes non-invasive online system for discrete
measurements of phase levels in a converter or pyrometallurgical furnace
in smelting and conversion processes, applying mechanical waves generated
by a transducer placed in the direction of the axis orthogonal to the
plane of the phases, for applying mechanical waves that travel in a
longitudinal direction into the converter or pyrometallurgical furnace,
and a detector or sensor mechanical waves receive a signal (echo pulses)
reflected by the different interphases returning a fraction of the power
to the transducer that generated it. The propagation time measurement of
the signal, from the moment it is emitted by the transducer up to the
moment in which the various echoes are received allows to determine the
position of the different interphases relative to the transducer.
