A demonstration of online real-time signal processing and cross correlation of two data streams is described. The demonstration is used to distinguish between near and far-side corrosion pit signals obtained by magnetic flux leakage detectors used in pipeline inspection. A PC-based data acquisition system is used, and an algorithm employing five simple processing stages is described. The demonstration reveals that processing speed is not a problem, however, if used as an operational tool, power requirements are likely to be a challenge.
Distinction between near and far-side corrosion pit signals using magnetic leakage flux detectors
Unterscheidung der Signale von nahen und fernen Rostnarben mittels magnetischem Leckflussdetektor
Canadian Electrical Engineering Journal ; 13 , 1 ; 27-31
1988
5 Seiten, 3 Quellen
Article (Journal)
English
RECHNERUNTERSTUETZTE INSTRUMENTIERUNG , DIGITALE SIGNALVERARBEITUNG , DATENERFASSUNG , DETEKTOR , MAGNETISCHER FLUSS , ONLINE-BETRIEB , KREUZKORRELATION , ALGORITHMUS , KORROSION , INSPEKTION , PIPELINE , OEL , GAS , ECHTZEITBETRIEB , SIGNALVERARBEITUNG , PERSONAL COMPUTER , WERKSTOFFPRUEFUNG , ERDOELINDUSTRIE , GASFERNLEITUNG , CORROSION TESTING , OIL PIPELINES
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