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Wigner Spectrum as Powerful Tool for Description of Acoustic Emission Hit Generated from Ceramic Structures upon Bend Load

Lubos Pazdera
Department of Physics, Faculty of Civil Engineering, Technical University of Brno, Czech Republic


Introduction of the Acoustic Emission Method

Wigner Spectrum

Experimental set-up




  1. Quian S., Chen D.: Join Time-Frequency Analysis: Methods and Applications, Prentice Hall PTR, Upper Saddle River, NJ, 1996
  2. Chobola Z., Korenska M., Melcher J., Pazdera L., Ritickova L., Smutny J., Weber Z.: Testing of Glass Wall by Using Acoustic Emission Method - Analyses of Amplitude of Acoustic Emission Signal, XI. International Scientific Conference of Technical University, section Bearing structure, 18.-20.10.1999, Brno, Czech R., pp. 71-74, ISBN 80-214-1437-5
  3. Pazdera L., Smutny J.: Time-Frequency Analysis of Mechanical Quantities Employing Wavelet Transformation, 36. EAN, Kosice, Acta Mechanica Slovaca, 1998, pp. 227-230, ISSN 1335-2393
  4. Stastny F., Brablec A., Svobodova J.: Teaching of Modern Measurement Methods, Proceeding of SEFI-nWKG Seminar EMEPE'98 (Experiments and measurements in engineering physics education), Technical University, Brno, 15 - 17 October, 1998, pp.53 - 56, ISBN 80-214-1223-2
  5. Smutny J., Pazdera L.: Analyses of Acoustic Emission Signal by Short Time Fourier Transform with Application on Thin-Walled Ceramic Building Materials, Proceedings of International Conference DIAGO'2000, Ostrava, Czech R., February, 2000, pp. 120-126, ISBN 80-7078-749-X

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