Piston guide and magnet assembly for the KRISS watt balance

The piston guide and magnet assembly for the KRISS watt balance were tested. The velocity of the piston guide was controlled within 4×10 -3 at the velocity of 2 mm s -1 using a linear motor and linear encoder feedback. The magnet assembly which consists of two permanent magnet rings and closed yokes...

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Bibliographic Details
Published in2016 Conference on Precision Electromagnetic Measurements (CPEM 2016) pp. 1 - 2
Main Authors Kim, D., Woo, B.-C, Ha, D., Lee, S.-U, Park, H.-S, Kim, J., Lee, K.-C
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 01.07.2016
Subjects
Air gaps
Assembly
Conferences
Electromagnetic measurement
Encoders
Fixtures
Flux shunt
Hall probes
kilogram redefinition
Magnetic flux
permanent magnet
Permanent magnets
piston guide
Pistons
Probes
Steel
Variability
watt balance
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Summary:The piston guide and magnet assembly for the KRISS watt balance were tested. The velocity of the piston guide was controlled within 4×10 -3 at the velocity of 2 mm s -1 using a linear motor and linear encoder feedback. The magnet assembly which consists of two permanent magnet rings and closed yokes was fabricated. B-field at the air gap of 25 mm was measured using a Hall probe. The B-field uniformity was within 5×10 -4 over the vertical distance of 24 mm.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Conference-1
ObjectType-Feature-3
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SourceType-Conference Papers & Proceedings-2
ISSN:2160-0171
DOI:10.1109/CPEM.2016.7540642