FIELD: measurement equipment.
SUBSTANCE: proposed device is designed for measurement of temperature in masses of molten metal or molten cryolite, having melting temperature of above 500°C. The device comprises optic fibre for reception of radiation from the molten mass and a cable drum comprising an outer circumference for reception of optic fibre and an inner space surrounded by this outer circumference. A distributor and a mode filter are arranged in the inner space of the cable drum.
EFFECT: higher accuracy of measurements.
17 cl, 2 dwg
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