EMAT inspection of header tube stubs
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United States of America Patent
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Jun 27, 2000
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N/A
app pub date -
Apr 29, 1998
filing date -
Apr 29, 1998
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Abstract
A method for non-destructively testing closely-spaced objects, such as header tube stubs for a furnace or boiler using electromagnetic acoustic transducers (EMATs) having meander coil sensors. The small size of the sensor combined with the need to move the sensor only a small fraction of the circumference of a tube to scan the entire circumference of the tube under test permits easy and accurate testing of an entire tube, even when the tube is one of a closely-spaced bundle.
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