High-performance permeability measurements: A case study at CERN

Author

Arpaia, Pasquale ; Buzio, Marco ; Fiscarelli, Lucio ; Montenero, Giuseppe ; Walckiers, Louis

Author_Institution

Dept. of Eng., Univ. of Sannio, Benevento, Italy

fYear

2010

fDate

3-6 May 2010

Firstpage

58

Lastpage

61

Abstract

An accurate and flexible system for magnetic permeability measurements is described. In particular, effects such as eddy currents and signal drift are minimized by exploiting the main system features: (i) high-performance digital integration by means of a digital integrator, with a theoretical resolution of 10 ppt using an 18-Bit A/D Converter at 800 kS/s, specifically developed for magnetic measurements, and (ii) flexibility of the measurement procedure for overcoming magnetic field non-uniformity errors through a procedure specifically generated by means of a flexible software framework. In particular, the theoretical background underlying the measurement, the procedure, and the system architecture are illustrated, as well as experimental results from testing a non-oriented steel are described.

Keywords

eddy currents; magnetic permeability measurement; digital integrator; eddy currents; high-performance permeability measurements; magnetic permeability measurements; signal drift; Computer architecture; Current measurement; Eddy currents; Magnetic field measurement; Magnetic variables measurement; Particle measurements; Permeability measurement; Signal generators; Signal resolution; Software measurement; permeability measurement; soft magnetic materials; split-coil;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2010 IEEE

Conference_Location

Austin, TX

ISSN

1091-5281

Print_ISBN

978-1-4244-2832-8

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2010.5488003

Filename

5488003