DEVICE FOR CALIBRATION OF HIGH-TEMPERATURE THERMOCOUPLES Russian patent published in 2020 - IPC G01K15/00 G01K1/12 

FIELD: thermometry.

SUBSTANCE: invention relates to thermometry and can be used for calibration of high-temperature thermoelectric converters. Device for calibration of high-temperature thermocouples consists of protective cover from refractory material with mounting flange, thermocouples with ceramic insulators, unit-emitter. Device is located vertically, the protective cover is tightly closed from the working end with a plug, inside the protective cover there is a coaxial support tube with thermocouple working junctions fixed on it, the carrying tube from the working end is hermetically plugged with a stopper-reflector. Protective cover and carrying tube have holes for filling with inert gas. Protective jacket with carrying tube and thermocouple thermocouples fixed thereon is arranged in radiator unit working cavity, and radiator unit is fixed on composite electric heater. On the side of radiating unit, opposite to its working cavity, hole is made for sighting of pyrometer.

EFFECT: providing calibration of one, two, and more three high-temperature thermocouples, including tungsten rhenium type, in the temperature range from 1,000 to 2,500 °C.

1 cl, 2 dwg, 1 tbl, 1 ex