Optical Part of a Pyrometer Used in a Tungsten–Rhenium Thermocouple Calibration Setup

To solve an important problem associated with the provision of technological processes with modern temperature measurement tools, specific requirements were formulated with respect to the optical part of a pyrometer intended for measuring temperature in the measurement cavity of the tungsten–rhenium thermocouple calibration setup (up to 2200°С). In accordance with these requirements, the optical part of a commercial Termokont pyrometer has been reworked and experimentally tested.