This paper deals with the characterization of a system for measurements on soft ferrites through a volt-amperometric method. The accurate control of the driving input field is discussed as a critical aspect for the definition of the correct operating conditions on the magnetic sample. A custom-built transimpedance amplifier is characterized in terms of total harmonic distortion and signal-to-noise and distortion ratio of the primary current and shown as a valid configuration for the required purposes. As a main contribution, the uncertainty analyses of the major loop measurement and of the magnetic accommodation measurement of minor asymmetric loops are provided.
|Autori:||Adamo F; Attivissimo F; Marracci M; Tellini B|
|Titolo:||Characterization of a system for measurements on soft ferrites|
|Anno del prodotto:||2012|
|Digital Object Identifier (DOI):||10.1088/0957-0233/23/8/085602|
|Appare nelle tipologie:||1.1 Articolo in rivista|