VIRTUAL SOURCE APERTURE IMAGING AND CALIBRATION FOR ULTRASONIC INSPECTIONS THROUGH DUAL-LAYERED MEDIA FOR NON-DESTRUCTIVE TESTING
Abstract and keywords
Abstract (English):
S momenta vnedreniya polnomatrichnogo zahvata dlya vizualizacii rezul'tatov UZK v programmnyh algoritmah stalo vozmozhno generirovat' polnost'yu sfokusirovannye izobrazheniya. Iz-za bol'shogo kolichestva signalov vremennogo intervala, svyazannogo s etim podhodom, skorost' obrabotki yavlyaetsya ogranichivayuschim faktorom. V stat'e predlozhen al'ternativnyy podhod, ne pred'yavlyayuschiy stol' vysokih trebovaniy k processoru. Predpolagaetsya, chto iz virtual'noy tochki, raspolozhennoy na nekotorom rasstoyanii pozadi preobrazovatelya, rasprostranyaetsya sil'no rashodyaschiysya puchok. Popadaya na kazhdyy element priemnika, takoy luch formiruet vo vremennoy oblasti signal, dostatochnyy dlya polucheniya polnost'yu sfokusirovannyh izobrazheniy.

Keywords:
UZK, preobrazovatel', fazirovannaya reshetka, polnomatrichnyy zahvat, obrabotka rezul'tatov
References

1. Frazier C. H., O›Brien W. R. Synthetic aperture techniques with a virtual source element. - IEEE Trans. Ultrasonics, Ferroelectrics and Frequency Control. 1998. V. 45. No. 1. P. 196-207.

2. Karaman M., Li P. C., O›Donnell M. Synthetic aperture imaging for small-scale systems. - Ibid. 1995. V. 42. No. 3. P. 429-442.

3. Sutcliffe M., Charlton P., Weston M. Multiple virtual source aperture imaging for NDT - Insight. 2014. V. 56. No. 2. P. 75-79.

4. Lukomski T., Stepinski T., Kowal J. Synthetic aperture focusing technique with virtual transducer for immersion inspection of solid objects. Insight. 2012. V. 54. No. 5. P. 623-627.

5. Weston M., Mudge P., Davis C., Peyton A. Time-efficient auto-focusing algorithms for ultrasonic inspection of dual layered media using full matrix capture. - NDT&E International. 2012. V. 47. P. 43-50.

6. Hahn S. L. - In: Hilbert Transforms in Signal Processing. - Artech House, 1996.

7. Bae M., Jeong M. A study of synthetic-aperture imaging with virtual source elements in B-mode ultrasound imaging systems. - IEEE Trans. Ultrasonics, Ferroelectrics and Frequency Control. 2000. V. 47. P. 1510-1518.

8. Sutcliffe M., Weston M., Dutton B. et al. Real-time full matrix capture for ultrasonic non-destructive testing with acceleration of post-processing through graphic hardware. - NDT&E International. 2012. V. 51. P. 16-23.

9. ASME E2491. Standard guide for evaulating performance characteristics of phased array ultrasonic examination.

10. BS EN 12668-3. Non-destructive testing. Characterization and verification of ultrasonic examination equipment. Combined equipment.

11. Mosey S., Sutcliffe M., Weston M. et al. Development and implementation of calibration process for Full Matrix Capture. - In: 53rd Annual Conf. of the BINDT, 2014.

12. Weston M., Nageswaran C., Sutcliffe M. et al. Calibration of ultrasonic techniques using full matrix matrix capture data for industrial inspection. - Insight. 2012. V. 54. No. 11. P. 602-611.

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