Title :
The study of detection technology and instrument of buried pipeline-coating defects
Author :
Shijiu, Jin ; Li Jian ; Shili, Chen ; Kun, Xiao ; Shizhe, Song
Author_Institution :
State Key Lab. for Precision Meas. Technol. & Instruments, Tianjin Univ., China
Abstract :
Based on a study of electrochemical impedance spectroscopy (EIS) of buried pipeline coating defects, a detection method for coating defects is put forward, a DSP-based measurement instrument is developed, and satisfactory results are acquired on an experimental pipeline and long transport pipelines.
Keywords :
corrosion protective coatings; corrosion testing; electric impedance measurement; electrochemical analysis; flaw detection; natural gas technology; oil technology; signal processing equipment; DSP-based measurement instrument; buried pipeline coating defects; coating disbondment; detection technology; electrochemical impedance spectroscopy; gas pipelines; long transport pipelines; oil pipelines; Accidents; Capacitance; Cathodes; Circuits; Coatings; Corrosion; Instruments; Laboratories; Pipelines; Protection;
Conference_Titel :
Intelligent Control and Automation, 2002. Proceedings of the 4th World Congress on
Print_ISBN :
0-7803-7268-9
DOI :
10.1109/WCICA.2002.1022225
