Determining the Magnetic Properties of 1 kg Mass Standards

摘要

Magnetic interactions may lead to errors in precision mass metrology. Ananalytical 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).