Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Reexamination Certificate
2007-09-20
2011-12-13
Hollington, Jermele M (Department: 2858)
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
Reexamination Certificate
active
08076929
ABSTRACT:
A method for detecting an anomaly in an assembly of a first and a second object of electrically conductive material forming an intermediate space between them, comprising providing a device (5) comprising a transmitter/receiver arrangement (7) for generating an electromagnetic field, and for measuring a signal indicative of an eddy current which is generated in the assembly by the electromagnetic field; arranging the device in a measurement position within the intermediate space; activating the device so as to receive a signal indicative of an eddy current in the assembly; and comparing the signal with a norm so as to detect if an anomaly is present at the measurement position, and a device for detecting an anomaly in an assembly of a first and a second object forming an intermediate space between them, the device comprising a transmitter/receiver arrangement a fixation means which. is arranged to fix the transmitter/receiver arrangement at a measurement position with respect to the inspection object.
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Badoux Dave
Crouzen Paulus Carolus Nicolaas
Hickman William E.
Hollington Jermele M
Shell Oil Company
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