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Determining the Magnetic Properties of 1 kg Mass Standards
1Bureau International des Poids et Mesures, Pavillon de Breteuil, F-92312 Sèvres Cedex, France.
None:
Magnetic interactions may lead to errors in precision mass metrology. An analytical description of such magnetic errors is presented in which the roles of both the volume magnetic susceptibility and permanent magnetization are discussed. The same formalism is then used to describe in detail the calibration and operation of a susceptometer developed at the Bureau International des Poids et Mesures (BIPM). The device has been optimized for the determination of the magnetic properties of 1 kg mass standards.
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