Article presents intellectual AE-system principles; such a system has upgraded AE-testing process by means of automation and intellectualization of functions commonly performed by an operator. It is supposed that there are the following automated functions in the intellectual AE system: sampling rate assignment for correct time and frequency resolution, adaptive filtering of AE-signals for their efficient detecting against technological equipment noise background and data registration without setting of a threshold, sceto and other parameters by an operator. Data registration procedure uses a non-threshold statistical method of AE-impulses extraction on the basis of acoustic stationary noise properties changing. By means of digital signal processing pulse and continuous signal products are extracted; a continuous product allows identifying leaks, technological noises and pre-destruction continuous emissions. Intelligent AE-system can improve accuracy and reliability of AE-testing.
automotive filtering, threshold-free data acquisition, intelligent system, location against noise background
- Ivanov V. I., Vlasov I. E. Metod akusticheskoy emissii [Acoustic Emission Method]. In: Nerazrushayushchiy kontrol. Spravochnik pod red. V. V. Klyueva. T. 7 [Nondestructive Testing. Handbook edited by V. V. Klyuev. V. 7]. Moscow, Mashinostroenie, 2004, pp. 12-340 (in Russ.).
- Barat V., Borodin Y., Kuzmin A. Intelligent AE Signal Filtering Methods. Journal AE. 2010, v. 28, pp. 109–119.
- Kharebov V. G., Popkov Yu. S. V mire NK [NDT World]. 2008, no. 3(41), pp. 14–17 (in Russ.).
- Barat V. A., Alyakritskij A. L. Automated method for statistic processing of AE testing data. Journal AE. 2008, v. 26, pp. 132–141.