ZHOU De-qiang1, TIAN Gui-yun1, WANG Hai-tao1, et al. Application of wavelet transformation in pulsed eddy current signal processsing[J]. 2008, 27(10): 115-117+120.
ZHOU De-qiang1, TIAN Gui-yun1, WANG Hai-tao1, et al. Application of wavelet transformation in pulsed eddy current signal processsing[J]. 2008, 27(10): 115-117+120. DOI: 10.13873/j.1000-97872008.10.009.
Pulsed eddy current(PEC) testing is a new development area of eddy current testing technology.The PEC signal is acquired from the data collection device.The theory of wavelet transformation is introduced.The problem of noise cancellation for the pulsed eddy current is researched.The PEC signal noise is cancelled by wavelet transformation.The experiment results show that the signal ratio of PEC signal is improved significantly.