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Title: Vector magnetometry sensor for internal inspection of gas distribution mains. Final report, February 1995-August 1996

There is a recognized need for an advanced distribution pipe inspection system which can operate in 4` and 6` diameter pipes. This program developed a prototype sensor car based on vector magnetometry. The prototype sensor system was tested in the laboratory. Test data is presented showing defect detection capability for defects as small as 25% of the pipe wall. Field tests were also conducted with mixed results. Varying corrosion levels were observed. However, specific defects were difficult to identify.
Authors:
;
Publication Date:
OSTI Identifier:
538819
Report Number(s):
PB--97-203285/XAB; ADL--44737-00
CNN: Contract GRI-5093-270-2629; TRN: 72886651
Resource Type:
Technical Report
Resource Relation:
Other Information: DN: Original stock has color illustrations. Reproductions are in black and white; PBD: Jun 1997
Research Org:
Little (Arthur D.), Inc., Cambridge, MA (United States)
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; NATURAL GAS DISTRIBUTION SYSTEMS; INSPECTION; MAGNETOMETERS; FIELD TESTS; PROGRESS REPORT