INSTRUMENTATION AND SIGNAL CONDITIONING FOR BARKHAUSEN NOISE MEASUREMENT

A.Flammini, D. Marioli, E. Sardini, E. Sisinni, A.Taroni

Abstract

The aim of this work is to describe an improved Non Destructive Testing (NDT) methodology based on the analysis of Barkhausen noise (BN). A purposely designed probe has been realized, that allows the acquisition of the Barkhausen noise together with the magnetic induction flux experimented by the pick-up coil core plus the material under test. The basic idea is to support the BN analysis with information related to the hysteresis cycle; experimental results show how a multivariate approach can lead to a better resolution and repeatability.

Keywords

Sensor data processing, Barkhausen Noise, NDT

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PWC-2003-TC4-045.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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