DocumentCode
2095025
Title
Analytical calculation and analysis for meander-coil electromagnetic acoustic transducers
Author
Hao, Kuansheng ; Huang, Songling ; Zhao, Wei ; Duan, Rujiao
Author_Institution
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
fYear
2011
fDate
10-12 May 2011
Firstpage
1
Lastpage
4
Abstract
An analytical model and analysis method is proposed in this paper to analyze EMAT with complex PCB or FPC meander coil. The frequency-domain eddy current and Lorentz force in the specimen caused by the dynamic field and bias magnetic field were derived in terms of second vector potential, then the pulse time-domain response was obtained by FFT-IFFT method. An example was analyzed by the proposed method to verify its validity.
Keywords
acoustic transducers; coils; eddy currents; fast Fourier transforms; frequency-domain analysis; printed circuits; FFT-IFFT method; FPC; Lorentz force; PCB; bias magnetic field; frequency-domain eddy current; meander-coil electromagnetic acoustic transducer; Coils; Conductors; Eddy currents; Equations; Lorentz covariance; Magnetic fields; Mathematical model; EMAT; meander coil; second vector potential;
fLanguage
English
Publisher
ieee
Conference_Titel
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location
Binjiang
ISSN
1091-5281
Print_ISBN
978-1-4244-7933-7
Type
conf
DOI
10.1109/IMTC.2011.5944058
Filename
5944058
Link To Document