Process and device for testing a workpiece by means of eddy currents
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United States of America Patent
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May 20, 2003
Grant Date -
Jun 20, 2002
app pub date -
Sep 17, 2001
filing date -
Sep 15, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a process for testing of a workpiece by means of eddy currents induced by a field coil in the workpiece and from which a measurement signal is obtained by means of a measurement sensor, a pattern signal representative of a workpiece fault being generated, a correlation function of the measurement signal acquired by the sensor with the pattern signal being determined, and the correlation function being evaluated in order to detect a fault in the workpiece. The invention furthermore relates to a device for executing the process.
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