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Takenaka Corp
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Takenaka Corp
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Publication date
Application filed by Takenaka CorpfiledCriticalTakenaka Corp
Priority to JP1986112158UpriorityCriticalpatent/JPH0622212Y2/ja
Publication of JPS6320057UpublicationCriticalpatent/JPS6320057U/ja
Application grantedgrantedCritical
Publication of JPH0622212Y2publicationCriticalpatent/JPH0622212Y2/ja
Pipeline inspection apparatus with means for correlating the recorded defect signals with the angular position within the pipeline at which they were generated
Method and apparatus for inspecting a tubular member for inside and outside anomalies utilizing magnetic field detector means positioned on both the inside and outside surfaces