Magnetic circuit design for the BNM Watt balance experiment

The Bureau National de Me/spl acute/trologie (BNM) has started since 2001 the development of a Watt balance experiment. We first remind the reader the basic principles of that experiment before describing in detail the design of the magnetic circuit which is a principal component of it. Several aspe...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2005-04, Vol.54 (2), p.742-745
Main Authors: Gournay, P., Geneves, G., Alves, F., Besbes, M., Villar, F., David, J.
Format: Article
Language:English
Subjects:
Circuit design
Coefficients
Geometry
Instrumentation
Kilogram
magnetic circuit
Magnetic circuits
Magnetic flux
Magnetic materials
Magnetostriction
Metrology
Mounting
Permanent magnets
Readers
Superconducting coils
Temperature
Uncertainty
watt balance
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Summary:The Bureau National de Me/spl acute/trologie (BNM) has started since 2001 the development of a Watt balance experiment. We first remind the reader the basic principles of that experiment before describing in detail the design of the magnetic circuit which is a principal component of it. Several aspects of the design are described, in particular the circuit geometry, the materials, the influence of magnetostriction, the compensation of the magnet temperature coefficient, and the mounting.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2004.843072