Design of the new METAS watt balance experiment Mark II

被引：82

作者：

Baumann, H. ^{[1
]}

Eichenberger, A. ^{[1
]}

Cosandier, F. ^{[1
]}

Jeckelmann, B. ^{[1
]}

Clavel, R. ^{[2
]}

Reber, D. ^{[3
]}

Tommasini, D. ^{[4
]}

机构：

[1] Fed Inst Metrol METAS, CH-3003 Bern, Switzerland

[2] Ecole Polytech Fed Lausanne, Ecole Polytech Lausanne, LSRO, Lab Syst Robot, CH-1015 Lausanne, Switzerland

[3] METTLER TOLEDO, CH-8606 Nanikon, Switzerland

[4] CERN, CH-1211 Geneva, Switzerland

来源：

METROLOGIA | 2013年 / 50卷 / 03期

关键词：

PLANCK CONSTANT; KILOGRAM;

D O I：

10.1088/0026-1394/50/3/235

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The kilogram is the last unit of the international system of units (SI) still based on a material artefact, the international prototype of the kilogram (IPK). The comparisons made in the last hundred years have clearly revealed a long-term relative drift between the IPK and the official copies kept under similar conditions at the Bureau International des Poids et Mesures. A promising route towards a new definition of the kilogram based on a fundamental constant is represented by the watt balance experiment which links the mass unit to the Planck constant h. For more than ten years, the Federal Institute of Metrology METAS has been actively working in the conception and development of a watt balance experiment. This paper describes the new design of the Mark II METAS watt balance. The metrological characteristics of the different components of the experiment are described and discussed.

引用

页码：235 / 242

页数：8

共 18 条

[1] Counting the atoms in a 28Si crystal for a new kilogram definition [J].