Title :
Simulation Analysis of Multi-Frequency Eddy Current Sensor Impedance Property
Author :
Gao Junzhe ; Pan Mengchun ; Luo Feilu ; Liu Bo ; He Yunze
Author_Institution :
Coll. of Mecha-Electron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
Multi-frequency eddy current test technique is applied in the industrial non-destructive testing more and more widely. Every frequency component contains the useful information and the harmful noise when the eddy current sensor is excited by several sine signals. The impedance property of the sensor is a key element in the test system, so this paper analyzed it by finite element method simulation. The simulation results show the variation law of the impedance in the air and on the nonferromagnetic metal plate in different frequencies, and the law is helpful for the signal processing of multi-frequency eddy current testing.
Keywords :
eddy current testing; electric sensing devices; finite element analysis; signal processing; finite element method simulation; industrial nondestructive testing; multifrequency eddy current sensor impedance property; multifrequency eddy current test technique; nonferromagnetic metal plate; signal processing; sine signals; Analytical models; Eddy current testing; Eddy currents; Finite element methods; Frequency; Impedance; Nondestructive testing; Sensor systems; Signal processing; System testing;
Conference_Titel :
Information Engineering and Computer Science, 2009. ICIECS 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4994-1
DOI :
10.1109/ICIECS.2009.5362701
