Title :
A frequency spectrum analysis method for eddy current nondestructive testing
Author :
Pei, Xiao-Mei ; Liang, Hong-Sheng ; Qiao, Yong-Ming
Author_Institution :
Sch. of Autom. Control, Xi´´an Univ. of Technol., China
Abstract :
Frequency spectrum analysis is introduced to eddy current nondestructive testing. From the equivalent circuit of the eddy current testing system, the eddy current testing system is derived to be a second-order system and the characteristic of the output response signal for the square wave of the eddy current testing system is given. Then the frequency spectrum of the eddy current testing system output signal is analyzed. Finally, experimental results are given to show that the frequency analysis method for testing multiparameters is feasible and practical in use.
Keywords :
eddy current testing; equivalent circuits; frequency-domain analysis; spectral analysis; test equipment; eddy current nondestructive testing; equivalent circuit; frequency spectrum analysis method; output response signal; second-order system; square wave response; Circuit testing; Coils; Eddy current testing; Eddy currents; Equivalent circuits; Frequency; Inductance; Nondestructive testing; Sensor systems; System testing;
Conference_Titel :
Machine Learning and Cybernetics, 2002. Proceedings. 2002 International Conference on
Print_ISBN :
0-7803-7508-4
DOI :
10.1109/ICMLC.2002.1167389
