Eddy current pipeline inspection device and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 24, 2002
Grant Date -
N/A
app pub date -
May 25, 2000
filing date -
Sep 6, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipeline inspection vehicle which can be towed through a pipeline via a cable. The vehicle includes a power unit, a master processor module, and a coil which generates an eddy current field which passes along the pipe. The resultant field is detected by a master sensor ring and slave sensor ring. Information on an amplitude and phase of the detected field together with vehicle orientation information is sent to a base station which has a computer. A distance encoder also is provided to assist in locating the position of any detected faults.
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Cited Art Landscape
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