DocumentCode
1765452
Title
Design of the Permanent-Magnet System for NIST-4
Author
Schlamminger, Stephan
Author_Institution
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Volume
62
Issue
6
fYear
2013
fDate
41426
Firstpage
1524
Lastpage
1530
Abstract
A new watt balance, i.e., NIST-4, is currently being designed at the National Institute of Standards and Technology. This apparatus will be used to realize the unit of mass after the redefinition of the kilogram has taken effect. In order to ensure smooth operation at regular mass realizations, the watt balance should be easy to use and reliable. To meet these requirements, a permanent-magnet system will be implemented to generate the magnetic flux required to operate NIST-4. A brief overview of the permanent-magnet system and its design considerations are given.
Keywords
balances; magnetic field measurement; magnetic flux; permanent magnets; units (measurement); NIST-4; National Institute of Standards and Technology; magnetic flux generation; mass realizations; mass unit; permanent magnet system design; watt balance; Coils; Force; Magnetic circuits; Magnetic hysteresis; Magnetic noise; Magnetic separation; Superconducting magnets; Electromagnetic measurements; measurement standards; measurement units; permanent magnets; precision engineering;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.2012.2230771
Filename
6392270
Link To Document