Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Reexamination Certificate
2005-05-03
2005-05-03
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
C324S240000, C324S243000
Reexamination Certificate
active
06888347
ABSTRACT:
An omnidirectional eddy current probe includes a number of sense coils arranged in a stack having a principal axis. At least two of the sense coils are rotationally skewed about the principal axis relative to one another. The sense coils are operatively connected to each other and a drive coil is also positioned in the stack. An impulse through the drive coil induces a magnetic influx through a conducting material specimen having a surface, thereby generating eddy currents on the surface. Secondary magnetic field generated from the eddy currents produces corresponding signals in the sense coils, and the signals are then analyzed for the possibility of surface flaw in the conducting material.
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Patent Abstract of Japan, 2003240762A, H. Tatsuo, “Probe for Eddy Current Flaw Detection and Eddy Current Flaw Detecting Apparatus Using The Same”, vol. 2003, No. 12, Aug. 27, 2003.
European Search Report, EP04255457, D. Joyce, Nov. 12, 2004.
Batzinger Thomas James
Nath Shridhar Champaknath
Rose Curtis Wayne
Clarke Penny A.
LeDynh Bot
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