학술논문

The concept of a pressure balance based watt balance
Document Type
Conference
Source
CPEM 2010 Precision Electromagnetic Measurements (CPEM), 2010 Conference on. :131-132 Jun, 2010
Subject
Fields, Waves and Electromagnetics
Pistons
Coils
Pressure measurement
Magnetic fields
Gravity
Magnetic field measurement
Testing
Measurement standards
Electromagnetic forces
Uncertainty
Language
ISSN
0589-1485
2160-0171
Abstract
The possibility of a watt balance based on gas-operated pressure balances is discussed in the context of both a measurement of the Planck constant and a non-artefact realisation of the kilogram. Gas-operated pressure balances meet several key requirements of a watt balance. For example, two pressure balances in combination act as a high-precision mass comparator for the weighing mode while a single pressure balance can be used to move the coil through the magnetic field in a strictly vertical manner for the dynamic mode.