DEVICE FOR HIGH-TEMPERATURE MEASUREMENTS Russian patent published in 1997 - IPC

FIELD: ferrous metallurgy, applicable for measurement and monitoring of temperature in closed vacuum refining systems of liquid melts. SUBSTANCE: device has a cathode in the form of a graphite cup with an active layer, for instance BaCO₃, CaCO₃, CO₃, applied onto its interior surface, positioned in a refractory electric-insulated tube fastened in a metal body, and an anode in the form of a rod with a spherical bulging at the end facing the cup bottom and installed at a distance of 1-2 mm from it and positioned in a refractory electric-insulated tube installed inside the cathode; the negative terminal of the power source is connected to the cathode, and the positive terminal - to the anode via the measuring circuit load. EFFECT: expanded field of application for measurement of high temperatures, enhanced accuracy of measurement, simplified procedure of calibration. 3 dwg