Features of AL_OSC, the specialized software for acoustic emission wave forms processing
- The opportunity of convenient joint comparative analysis of two AE impulses wave forms registered by two different channels or one and the same channel, but at different time, is provided by a special pair window interface
- AE signals spectrum analysis based on fast Fourier transformation allows to make the analysis of frequency components of both a whole AE signal and its parts. It makes the program suitable not only for studying the emission nature in the course of the object testing, but also for laboratory research. Averaging of the chosen spectrum range is stipulated to ensure statistical reliability of the results.
- The presented correlation processing of AE signals waveforms and their spectra allowing to identify emission acts registered by different transducers from one source is an important element of the pattern recognition system.
- Statistical processing of both signals and set spectral frequency intervals enables carrying out of the statistical analysis under the set characteristics of the signals form and the spectrum frequency areas. Besides, calculation of partial power characteristics is available for each interval.
- Transformation of AE signals oscillograms into Windows sound files with various sampling rates gives the unique opportunity "to hear" emission.
- Calculation of wavelet-spectrograms of waveforms represents a powerful modern method of the time-and-frequency analysis of the AE data received.
- Dispersive curves calculating in various environments together with the opportunity of its flexible imposing on the wavelet-spectrogram of the chosen AE impulse allows to define the type of the registered elastic wave and, at the same time, such important characteristics as the source occurrence depth and the distance to it.
- All the results of waveforms processing can be saved and exported to graphic or text format for simplification of their use at reporting, writing articles, etc.
