Measuring Systems for Thermometer Calibration in Low-Temperature RangeReport as inadecuate




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International Journal of Thermophysics

, Volume 32, Issue 11–12, pp 2466–2476

First Online: 27 July 2011Received: 17 June 2010Accepted: 14 July 2011

Abstract

The national temperature standard for the low-temperature range between 13.8033 K and 273.16 K has been established in Poland at the Institute of Low Temperature and Structure Research INTiBS. The standard consists of sealed cells for realization of six fixed points of the International Temperature Scale of 1990 ITS-90 in the low-temperature range, an adiabatic cryostat and Isotech water and mercury triple-point baths, capsule standard resistance thermometers CSPRT, and AC and DC bridges with standard resistors for thermometers resistance measurements. INTiBS calibrates CSPRTs at the low-temperature fixed points with uncertainties less than 1 mK. In lower temperature range—between 2.5 K and about 25 K — rhodium–iron RhFe resistance thermometers are calibrated by comparison with a standard which participated in the EURAMET.T-K1.1 comparison. INTiBS offers a calibration service for industrial platinum resistance thermometers and for digital thermometers between 77 K and 273 K. These types of thermometers may be calibrated at INTiBS also in a higher temperature range up to 550°C. The Laboratory of Temperature Standard at INTiBS acquired an accreditation from the Polish Centre for Accreditation. A management system according to EN ISO-IEC 17025:2005 was established at the Laboratory and presented on EURAMET QSM Forum.

KeywordsCalibration Temperature scale Thermometry  Download to read the full article text



Author: A. Szmyrka-Grzebyk - L. Lipiński - H. Manuszkiewicz - A. Kowal - A. Grykałowska - D. Jancewicz

Source: https://link.springer.com/







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