G - Physics – 01 – N
Patent
G - Physics
01
N
324/50
G01N 27/87 (2006.01) G01N 27/82 (2006.01)
Patent
CA 1246145
ABSTRACT OF THE DISCLOSURE A device for detecting defects in the bore of a tubular member. The device includes an inspection head including an electromagnet for magnetizing the internal surface of a tubular member. The device also includes a sensor or sensors to detect magnetic flux leakage indicative of a defect. The magnetic flux sensor output is sent to a control-data acquisition system concurrently with signals as to the axial and circumferential position of the defect, which are obtained by their respective encoders. The control-data acquisition system is capable of processing and displaying the data in analog and digital form.
516911
Gibson William C.
Kusenberger Felix N.
Moyer Mark C.
Perry William D.
Silvus H. Stanley Jr.
Borden Ladner Gervais Llp
Exxon Production Research Company
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