Naučno-tehničeskij Vestnik Informacionnyh Tehnologij, Mehaniki i Optiki (Sep 2016)
CRYOGENIC SYSTEM FOR PRECISE CALIBRATION OF TEMPERATURE SENSORS
Abstract
A calibration technique for cryogenic temperature sensors is proposed and implemented. The experimental setup is based on the helium cryogenerator, providing calibration of the temperature sensors of various types in wide temperature range, including cryogenic band (25-100K). A condensation thermometer with hydrogen, neon, argon and xenon as working gases is used as a reference sensor. The experimental setup was successfully used for precise (0.1K precision) calibration of platinum resistive temperature detectors (Pt-100) for international nuclear physics experiments MuSun and PolFusion. The setup can also be used for calibration of temperature sensors of the other types.
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