Browse by author
Lookup NU author(s): Professor Gui Yun TianORCiD, Dr Liang Cheng
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
The potential drop (PD) method is an established non-destructive evaluation (NDE) technique. The monitoring of internal corrosion, erosion and cracks in piping systems, based on electrical field mapping or direct current potential drop array, is also known as the field signature method (FSM). The FSM has been applied in the field of submarine pipe monitoring and land-based oil and gas transmission pipes and containers. In the experimental studies, to detect and calculate the degree of pipe corrosion, the FSM analyses the relationships between the electrical resistance and pipe thickness using an electrode matrix. The relevant drag effect or trans-resistance will cause a large margin of error in the application of resistance arrays. It is the first time that the drag effect in the paper is investigated and analysed in resistance networks with the help of the FSM. Subsequently, a method to calculate the drag factors and eliminate its errors is proposed and presented. Theoretical analysis, simulation and experimental results show that the measurement accuracy can be improved by eliminating the errors caused by the drag effect.
Author(s): Wan ZJ, Liao JB, Tian GY, Cheng L
Publication type: Article
Publication status: Published
Journal: Measurement Science and Technology
Year: 2011
Volume: 22
Issue: 8
Print publication date: 15/07/2011
ISSN (print): 0957-0233
ISSN (electronic): 1361-6501
Publisher: Institute of Physics Publishing Ltd.
URL: http://dx.doi.org/10.1088/0957-0233/22/8/085708
DOI: 10.1088/0957-0233/22/8/085708
Altmetrics provided by Altmetric
