Vol. 19 No. 2 (2022): Journal of Non Destructive Testing and Evaluation (JNDE), June 2022
Research Papers

Comparison of Side Drilled Holes and Surface Notch response for Phased Array Sectorial Beams calibration process

S. Gunasekar
D. Sastikumar
NIT Trichy

Published 26-06-2022


  • Phased Array UT,
  • Side drilled hole,
  • flat bottom hole,
  • PAUT calibration for pipe welds

How to Cite

Gunasekar , S. ., & Sastikumar, D. (2022). Comparison of Side Drilled Holes and Surface Notch response for Phased Array Sectorial Beams calibration process. Journal of Non-Destructive Testing and Evaluation (JNDE), 19(2), 22–27. Retrieved from https://jnde.isnt.in/index.php/JNDE/article/view/4


In this work, Phased array ultrasonic testing (PAUT) is calibrated for sound velocity, wedge delay, sensitivity and time corrected gain using side drilled holes and notches as reflectors.   The responses of the reflectors for various angles (40 – 70o) are studied and standardised.  The significant use of these reflectors and the cause of non-uniformity in notches, are analysed by comparing the reflection property of side drilled holes and surface notches for useful range of sectorial beam sets. Results are validated with the simulation studies.


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