Abstract:In eddy current testing, signals originating from product vibration and cracks are detected. Frequency filtering methods are widely used, such as vibration signal suppression. However, this method is not effective when the difference between the frequencies of the vibration and crack signals is small. We have proposed a dual induction method with passive vibration signal suppression that does not require active signal processing such as the frequency filtering method. This paper quantitatively describes the pe… Show more
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