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1. (WO2018160951) ELECTROMAGNETIC ACOUSTIC TRANSDUCER (EMAT) FOR CORROSION MAPPING

Pub. No.:    WO/2018/160951    International Application No.:    PCT/US2018/020638
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Sat Mar 03 00:59:59 CET 2018
IPC: G01N 29/00
G01N 29/04
G01N 29/22
G01N 29/24
Applicants: QUEST INTEGRATED, LLC
Inventors: BONDURANT, Phillip, D.
MACTUTIS, Anthony
DOUGHERTY, Richard, Lyle
Title: ELECTROMAGNETIC ACOUSTIC TRANSDUCER (EMAT) FOR CORROSION MAPPING
Abstract:
Systems and methods for detecting corrosion in pipes are disclosed herein. In one embodiment, an apparatus for detecting corrosion in an object includes an electromagnetic acoustic transducer (EMAT) having a ferromagnetic core and a plurality of permanent magnets arranged peripherally around the ferromagnetic core. The permanent magnets are arranged to produce a magnetic field through the ferromagnetic core. The apparatus also includes a coil between the ferromagnetic core and the object.