| US 7,546,770 B2 | ||
| Electromagnetic acoustic transducer | ||
| Manoj Kumar Koyithitta Meethal, Kerala (India); and David Martin Paige, Tyne and Wear (United Kingdom) | ||
| Assigned to General Electric Company, Niskayuna, N.Y. (US) | ||
| Filed on Jan. 05, 2006, as Appl. No. 11/325,945. | ||
| Prior Publication US 2007/0151344 A1, Jul. 05, 2007 | ||
| Int. Cl. G01N 29/24 (2006.01) | ||
| U.S. Cl. 73—643 | 20 Claims |
| 1. An electromagnetic acoustic transducer (EMAT) for inspecting an object, comprising:
a magnet configured to generate a magnetic field in an object;
a radio frequency coil configured to induce eddy currents on a surface of the object; and
a laminated wear plate disposed over the magnet and the radio frequency coil and configured to shield the magnet and the radio
frequency coil from damage, wherein the laminated wear plate comprises a plurality of ferromagnetic layers.
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