Title :
Computation of transient Eddy currents in EMATs using discrete Picard Method
Author :
Noorian, Farzad ; Sadr, Ali
Author_Institution :
Dept. of Electr. Eng., Iran Univ. of Sci. & Technol., Tehran, Iran
Abstract :
This paper presents a new method for solving transient Eddy current problems in EMAT non-destructive testing calculations. Using a linear approximation of differential operators, problem´s underlying differential equation is discretized in space, while being kept continuous in time; then Picard Method is exploited to solve the resulting equation numerically. Results are compared to analytical models and previous formulations and good agreement is found.
Keywords :
differential equations; eddy current testing; eddy currents; electromagnetic devices; mathematical operators; transients; ultrasonic materials testing; ultrasonic transducers; EMAT; differential equation; differential operators; discrete Picard method; discretization; electromagnetic acoustic transducer; linear approximation; nondestructive testing calculations; transient Eddy current; ultrasonic testing; Acoustic testing; Conductors; Current density; Differential equations; Eddy currents; History; Magnetic analysis; Magnetic fields; Magnetic materials; Space technology; DPM; EMAT; Eddy Currents; NDT; Picard Method; component;
Conference_Titel :
Electrical Engineering (ICEE), 2010 18th Iranian Conference on
Conference_Location :
Isfahan
Print_ISBN :
978-1-4244-6760-0
DOI :
10.1109/IRANIANCEE.2010.5506979
