Thermodynamic temperature determinations of Co-C, Pd-C, Pt-C and Ru-C eutectic fixed-point cells

被引：43

作者：

Anhalt, K.

Hartmann, J.

Lowe, D.

Machin, G.

Sadli, M.

Yamada, Y.

机构：

[1] Phys Tech Bundesanstalt, D-3300 Braunschweig, Germany

[2] Phys Tech Bundesanstalt, Berlin, Germany

[3] Natl Phys Lab, Teddington TW11 0LW, Middx, England

[4] CNAM, LNE INM, Paris, France

[5] AIST, Natl Metrol Inst Japan, Tsukuba, Ibaraki, Japan

来源：

METROLOGIA | 2006年 / 43卷 / 02期

关键词：

D O I：

10.1088/0026-1394/43/2/S16

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Thermodynamic temperatures during the melt and the freeze of Co-C, Pd-C, Pt-C and Ru-C metal-carbon fixed-point cells manufactured by LNE-INM/CNAM, NMIJ and NPL were determined by absolutely calibrated filter radiometers traceable to the PTB cryogenic radiometer and a radiance comparison method using an IKE LP3 radiation thermometer. The measurement uncertainties were below 400 mK at temperatures up to 2250 K. The results are in agreement within the combined uncertainties with a study on relative temperature differences of the same set of fixed-point cells. For the fixed-point cells manufactured by NPL the results are compared with a previous thermodynamic temperature measurement.

引用

页码：S78 / S83

页数：6

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