Title :
Thinning pipe wall evaluation by using electric potential difference method
Author_Institution :
Dept. of Appl. Phys. & Physico-Inform., Keio Univ., Yokohama
Abstract :
Electric potential difference method is widely used for diagnosing and monitoring flow conduits. We study the prospect of the method to evaluate pipe wall thinning. Based on our previous work on non-intrusive resistance thermometer for fast breeder reactor, this paper describes theoretical analysis and the 3-D exact solution of the electrical potential field in pipe wall. Complex potentials are applied for 2-D approximation of the potential on the wall surface to evaluate the pipe wall thinning.
Keywords :
approximation theory; difference equations; electric potential; pipes; 2D approximation; electric potential difference method; fast breeder reactor; monitoring flow conduits; nonintrusive resistance thermometer; thinning pipe wall evaluation; wall surface; Current; Electric potential; Electric resistance; Electrodes; Green function; Inductors; Monitoring; Surface cracks; Surface resistance; Thermal resistance; Electric potential; Forward problem; Pipe line diagnosis; Potential analysis;
Conference_Titel :
SICE Annual Conference, 2008
Conference_Location :
Tokyo
Print_ISBN :
978-4-907764-30-2
Electronic_ISBN :
978-4-907764-29-6
DOI :
10.1109/SICE.2008.4654710
