Comparison of xenon triple point realizations
Comparison of xenon triple point realizations
复制标题
氙三相点实现的比较
DOI：
10.1088/1681-7575/aaee3a
复制
发表时间：
2018
期刊：
影响因子：
2.4
通讯作者：
D. Giraudi
中科院分区：
文献类型：
--
作者：
P. Steur;P. Rourke;D. Giraudi
人们普遍认为，汞三相点（MTP）非常接近水三相点（WTP），这是1990年国际温标（ITS-90）的一个弱点，此外还有与汞的使用和运输有关的安全问题。因此，非常需要一种更安全、高质量的固定点替代品，该固定点位于氩和水三相点之间的大约一半。现在，描述了由加拿大国家研究理事会（NRC）于2005年填充的氙电池和Istituto Nazionale di Ricerca Metrologica（INRIM）最近生产的电池的直接比较。本文讨论了INRiM 2017年对INRiM和NRC电池的测量，以及在NRC的后续测量，并给出了两个电池之间的差异，（0.17 ± 0.08）mK，其中每个电池实现氙三相点（XeTP）的不确定度为0.11 mK（INRiM电池）和0.07 mK（NRC电池）（k = 1）。此外，用氙取代汞对1型非唯一性（“SRI”，子范围不一致），3型非唯一性（“NU 3”，cSPRT变异性）和传播的固定点实现不确定性的影响进行了显示和讨论。
It is widely recognized that the Mercury triple point (MTP) being situated very close to the Water triple point (WTP) constitutes a weakness in the International Temperature Scale of 1990 (ITS-90), in addition to safety concerns related to the use and transportation of Mercury. As such, a substitution for a safer, high-quality fixed point about half way between the Argon and Water triple points would be highly desirable. Now, a direct comparison is described of a Xenon cell filled in 2005 by the National Research Council Canada (NRC) and a more recently produced cell of the Istituto Nazionale di Ricerca Metrologica (INRIM). The present paper discusses the INRiM 2017 measurements on both the INRiM and NRC cells, with a follow-up measurement at NRC, and presents the difference between the two cells, (0.17 ± 0.08) mK with the uncertainties of each cell’s realization of the Xenon triple point (XeTP), 0.11 mK for the INRiM cell and 0.07 mK for the NRC cell (k = 1). In addition, the effect of substituting Mercury with Xenon on Type 1 non-uniqueness (‘SRI’, subrange inconsistency), Type 3 non-uniqueness (‘NU3’, cSPRT variability) and propagation of fixed point realization uncertainty is shown and discussed.
影响因子：
2.4
作者：
PRESTONTHOMAS, H
通讯作者：
PRESTONTHOMAS, H