Abstract:

The paper gave the design of steel cable damage detection system and the principle of the wavelet analysis for noise reduction, focusing on electromagnetic interference effects on signal acquisition to realization noise reduction depend on wavelet analysis theory. The testing results showed that the processing of decomposition and reconstruction on damage signal which based on wavelet multi-resolution analysis effectively removal of wild, the power frequency interference and many others noises, overcome the traditional shortcomings of filtering, achieve a reliable foundation for steel cable flaw signal identification.

Key words: steel wire ropes, damage detection, wavelet analysis, noise reduction