Acoustic Pulse Reflectometry (APR) is based on the measurement of one-dimensional acoustic waves propagating in tubes. Any change in the cross sectional area in the tubular system creates a reflection, which is then recorded and analyzed in order to detect defects.

  • APRIS probe injects specialized acoustic pulse down the tube
  • Returned echoes generated by defects are recorded and analyzed
  • Patented algorithms identify and report exact location, type and size of inner diameter defects

Uniqueness of APRIS:

  • Non Invasive (uses only sound waves
  • Applicable for any shape or configuration (Straight/ multiple bend, finned, coiled, spiral, helical tubes etc.,)
  • Inspect any tube materials (Ferrous, Non-ferrous, graphite, composites etc.,)
  • Ultrafast inspection (Less than 10 seconds per tube)
  • Easy to use
  • Sophisticated algorithm to identify precise location, type and size of defects
  • Intuitive software with artificial intelligence to generate reliable and quality report
  • Seamless communication with portal to enhance user interactions

Pre requisites to carry out APR Inspection:

  • Tubes to be cleaned and dried (No water stagnation)
    Flipsides of APR:
  • Defects in the outer diameter can’t be detected
  • Inept to detect the defects under deposits/scales
  • Cracks under pressure (Closed Cracks) shall not be detected

International Standards:

  • ASTM E2906/E2906M-13: Standard Practice for Acoustic Pulse Reflectometry Examination of Tube Bundles
  • ASME BPVC.V-2017: Article 18-Acoustic Pulse Reflectometry (APR) Examination