Holographic – nondestructive inspection of Litas banknotes

Authors

  • R. Vasiliauskas Kaunas University of Technology
  • A. Palevičius Kaunas University of Technology
  • A. Butavičius Kaunas University of Technology
  • V. Stupak Kaunas University of Technology

Abstract

The holographic interferometry method for the nondestructive testing and inspection of Litas banknotes is proposed in this paper. The acoustical excited different Litas banknotes samples were investigated using strobo-holographic method. Nondestructive testing done by the means of the laser holography provides a powerful tool for the detection of falsifications. It is showed that the same field of acoustic emission generates different response of the banknotes thus producing different patterns of interference fringes. Presented approach can be successfully applied for identification of falsifications of different treasure papers.

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Published

2004-09-14

Issue

Vol. 52 No. 3 (2004)

Section

WAVE PROPAGATION AND VIBRATION

License

Copyright terms are indicated in the Republic of Lithuania Law on Copyright and Related Rights; Articles 4-37.
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