Development of the Sealed-Type Triple-Point-of-Argon Cell for Long-Stem SPRT Calibration at KRISS |
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| Authors: | I. Yang C. H. Song K. H. Kang Y. -G. Kim K. S. Gam |
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| Affiliation: | (1) Division of Physical Metrology, Korea Research Institute of Standards and Science (KRISS), 1 Doryong-dong, Yuseong-gu, Daejeon, 305-340, South Korea |
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| Abstract: | A system was fabricated to realize the triple point of argon for the calibration of long-stem standard platinum resistance thermometers. A cryostat was constructed so that the temperature could be controlled quasi-adiabatically, and the melting was realized using the continuous-heating method. The combined uncertainty of the realization of the triple point of argon for a confidence level of 95% was 0.6 mK. |
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| Keywords: | Calibration Long-stem SPRT Triple point of argon Thermometry |
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