Real-time Data Sample and Wavelet Analysis System Based on Dsp for Ae Signal Process
نویسندگان
چکیده
AE (Acoustic Emission) testing is an important way in the NDT (Non Destructive Testing) field and wavelet analysis is demonstrated to be a promising method to process AE signal. A wavelet analysis module based on DSP (Digital Signal Processor) implementation is developed for AE testing system of the composite material to make the wavelet analysis system much more small and portable. The implementation of MALLAT algorithm with DSP system for wavelet analysis is discussed in detail. The DSP system is composed of TMS320VC5402 chip, AD 7865 with 400 kHz sample rating and clock circuit, etc. The AE signal can be sent directly into the DSP system. Wavelet analysis of the input signal can be done in the module to extract the feature of structure damage.
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