ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)

vol 63 / August, 2020

DOI 10.17586/0021-3454-2018-61-12-1060-1066

UDC 620.179.16


D. N. Bazylev
ITMO University, Saint Petersburg, 197101, Russian Federation; postgraduate

V. A. Romanovich
JSC "Diakont“, Department of System Design; Head of the Department

S. N. Somov
ITMO University;

A. A. Pyrkin
ITMO University, Saint Petersburg, 197101, Russian Federation; Professor, Dean

Read the full article 

Abstract. The task of pipeline diagnosing with the use of a phased antenna array (FAA) on an electromag-netic-acoustic converter (EMAC) is considered. A new algorithm for phased EMAC arrays is proposed; the algorithm provides improved accuracy characteristics and a faster scanning of a test object than the classical diagnostic method with FAA. The efficiency and performance of the developed scanning algorithm is studied experimentally with the help of the EMAC-FAA prototype and a test sample. Comparison of the new algorithm with the classical one on the base of the experimental results demonstrates that the proposed scanning solution allows to reduce the effect of crosstalk significantly and to increase the signal-to-noise ratio in the distributions of the echo signal amplitudes.
Keywords: phased antenna array, ultrasonic diagnostics, non-destructive testing, electromagnetic- acoustic converter

  1. (in Russ.)
  2. c (in Russ.)
  3. Sosnin F.R., Kovalev A.V. Nerazrushayushchiy kontrol’ i diagnostika: Spravochnik (Non-Destructive Testing and Diagnostics: Handbook), Moscow, 2003. (in Russ.)
  4. Konovalov N.N. Normirovaniye defektov i dostovernost’ nerazrushayushchego kontrolya svarnykh soyedineniy (Normalization of Defects and Reliability of Non-Destructive Testing of Welded Joints), Moscow, 2006. (in Russ.)
  5. (in Russ.)
  6. Achenbach J.D. Wave Propagation in Elastic Solids, NY, Elsevier, 1984.
  7. Lamb H. Proc. Roy. Soc. London A, 1917, no. 93, pp. 114.
  8. Viktorov I.A. Rayleigh and Lamb Waves: Physical Theory and Applications, NY, Plenum Press, 1967.
  9. Ushakov V.M. Nerazrushayushchiy kontrol’ i diagnostika gorno-shakhtnogo i neftegazovogo oborudovaniya (Non-Destructive Testing and Diagnostics of Mining and Oil and Gas Equipment), Moscow, 2014, 318 р. ISBN: 978-5-98672-370-9 (in Russ.)
  10. Kozlov V.N., Samokrutov A.A., Yakovlev N.N., Kovalev A.V., Shevaldykin V.G. Instruments and Systems: Monitoring, Control, and Diagnostics, 1989, no. 7, pp. 21–24. (in Russ.)
  11. Kozlov V.N., Samokrutov A.A., Shevaldykin V.G. Nondestructive Testing and Evaluation, 1997, no. 13, pp. 73–84.
  12. Kovalev A.V., Kozlov V.N., Samokrutov A.A., Shevaldykin V.G., Yakovlev N.N. Soviet Journal of Nondestructive Testing, 1990, no. 2, pp. 29–41. (in Russ.)
  13. Sergiyenko A.B. Tsifrovaya obrabotka signalov (Digital Signal Processing), St. Petersburg, 2002, 608 р. (in Russ.)