The Design and Implementation of Adaptive Noise Cancellation for Magnetic Flux Leakage Test Signal

Xiao Gang Han; Mei Quan Liu; Qin Lei Sun

doi:10.4028/www.scientific.net/AMM.441.393

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 441The Design and Implementation of Adaptive Noise...

The Design and Implementation of Adaptive Noise Cancellation for Magnetic Flux Leakage Test Signal

Abstract:

In the application of magnetic flux leakage (MFL) nondestructive testing, the signal will be disturbed by varying noises. It seriously affects the accuracy of detection judgment result. This paper describes the design of least mean square (LMS) noise cancellation for MFL signal and the implementation based on ARM platform. Two giant magnetoresistive sensors are used to measure the signal, one sensor for MFL signal (with noise) and the other one for the noise signal. They are inputted to the noise cancellation to obtain pure MFL signals. Experimental results show that the LMS noise cancellation significantly improves the signal to noise ratio.

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Periodical:

Applied Mechanics and Materials (Volume 441)

Pages:

393-396

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.441.393

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Online since:

December 2013

Authors:

Xiao Gang Han, Mei Quan Liu, Qin Lei Sun

Keywords:

ARM, LMS, Magnetic Flux Leakage, Noise Cancellation

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References

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