METHOD TO DISTRIBUTE DENSITY OF METAL MELTS Russian patent published in 2014 - IPC G01N13/02 G01N9/04 

FIELD: measurement equipment.

SUBSTANCE: invention relates to technical physics, namely, to define physical and chemical parameters of metal melts by measurement of density and surface tension of a melt sample drop in ellipse shape lying still on the substrate by means of photoelectronic volumetry. The melt sample in the form of a drop is put on the substrate in the vacuum chamber of the electric furnace of the horizontal type, and the melt drop silhouette is made by means of a photodetector. Upstream the vacuum chamber they place a switched optical emitter, which is put on at the moment when registration of the internal glow of the melt sample drop stops during its cooling. With the help of the emitter they light the melt drop and by the reflected optical signal of the drop silhouette they determine the volume and density of the drop until the temperature of its cooling.

EFFECT: increased temperature range of melt density measurements.

5 cl, 5 dwg