Applications of wavelet analysis to detecting wire rope cracks and abrasion

Author: J. Kwaśniewski

The paper presents the results of research work into the applications of wavelet analysis to decomposition of signals from induction sensors, Wavelet analysis was found very useful in magnetic inspection of wire ropes.

Appropriate levels of signal decomposition, carrying the information about the rope wear-off forms, were duly determined.

Various twisted and lay ropes were examined.

Thus obtained results show cleary that the wavelet analysis of non-stationary signals is a useful tool for wire rope inspection.

Power spectra picked up from the selected levels of signal decomposition [details] allow to quantify the degree of rope wear.

Determining the selected levels of decomposition may be further used in design of new-generation flaw detectors.