The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 2016
Filed:
May. 23, 2011
David C. Jiles, Samarate, IT;
Lukasz Mierczak, Samarate, IT;
Luigi Merletti, Samarate, IT;
Gabriele Fantoni, Samarate, IT;
David C. Jiles, Samarate, IT;
Lukasz Mierczak, Samarate, IT;
Luigi Merletti, Samarate, IT;
Gabriele Fantoni, Samarate, IT;
AGUSTA WESTLAND S.P.A., Samarate, IT;
Abstract
The present system determines a significant stress value (σ) of a component made of magnetizable material. The system has a generating stage for generating a magnetic field of varying amplitude (H); and also includes a pickup stage for acquiring a Barkhausen noise signal (MBN) alongside variations in the amplitude (H) of the magnetic field. The system is characterized by having a processing unit for calculating the reciprocal (1/MBNmax) of the maximum value (MBNmax) of the signal (MBN), alongside variations in the amplitude (H) of the magnetic field. The processing unit has a memory stage storing a linear relation between the reciprocal (1/MBNmax) of the maximum value and the significant stress value (σ).