Chapter 38. Digital Signal Processing Algorithms Applied to Acoustic Impact Testing of Advanced Ceramics

  1. Mrityunjay Singh and
  2. Todd Jessen
  1. Ph.D. P.E. Scott R. Short1 and
  2. S. Chen2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294680.ch38

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3

How to Cite

Short, S. R. and Chen, S. (2001) Digital Signal Processing Algorithms Applied to Acoustic Impact Testing of Advanced Ceramics, in 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 22, Issue 3 (eds M. Singh and T. Jessen), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294680.ch38

Author Information

  1. 1

    Dept. Mechanical Engineering Northern Illinois University DeKalb, IL60115

  2. 2

    Dept. Electrical Engineering Northern Illinois University DeKalb, IL 60115

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2001

ISBN Information

Print ISBN: 9780470375730

Online ISBN: 9780470294680

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Keywords:

  • component;
  • frequency;
  • vibration;
  • microphone;
  • algorithm

Summary

In ASTM Standard C1259 [1], transient vibration signatures are used to measure the dynamic moduli of advanced ceramics. In a variation of this method, a small mass can be dropped onto a component and the resulting transient vibration signature can be used to perform nondestructive characterization. This method is sometimes referred to as acoustic impact testing. In the current research, the advantages of incorporating specific digital signal processing (DSP) algorithms into a PC-based data acquisition system used in the acoustic impact testing of advanced ceramics are presented. Resonant frequencies and damping factors are determined for a silicon carbide (SiC) test specimen containing various sawcuts.