ISO 18563-2:2024

Overview

ISO 18563-2:2024 specifies characterization tests and acceptance criteria for ultrasonic phased array array probes at the end of fabrication. It covers probe types used in ultrasonic non‑destructive testing (NDT) - including 1‑D linear and curved arrays, annular arrays, 2‑D (matrix) arrays and sectorial annular variants - for contact (with or without wedge/delay line) and immersion techniques. Applicable centre frequencies range from 0.5 MHz to 10 MHz. This part focuses on the probe only; instrument and complete system performance are covered in ISO 18563‑1 and ISO 18563‑3.

Key Topics and Requirements

• Scope of probe types: 1‑D linear/curved, annular, 2‑D matrix, sectorial/partial annular arrays.
• Required deliverables:
  • Array probe data sheet with technical specifications.
  • Array probe test report with determined parameter values, test equipment and settings.
  • Marking and traceability (manufacturer ID and serial/reference number).
  • Statement of conformity (manufacturer, purchaser or third party).
• Characterization tests (methodology and acceptance criteria defined):
  • Physical aspects - geometry, contact face, housing and wedge/delay line details.
  • Relative pulse‑echo sensitivity variation - element‑by‑element sensitivity evaluation.
  • Frequency, bandwidth and pulse duration - centre frequency, –6 dB cut‑offs and bandwidth determination.
  • Array probe sensitivity - overall probe sensitivity metrics.
  • Inter‑element cross‑talk attenuation (optional) - measurement and reporting.
  • Number of elements out of specification - detection and acceptance criteria.
• Test equipment and setup: Electronic instrumentation and test configurations (contact and immersion) must be stated and periodically checked.
• Documentation: Required technical information and optional data (e.g., squint angle, backing echo) to be provided.

Applications and Practical Value

• Ensures manufactured probe quality and consistency before shipment.
• Provides traceability and objective acceptance criteria for manufacturers, calibration labs and quality assurance.
• Supports advanced phased‑array signal processing workflows such as FMC and TFM by ensuring reliable probe performance.
• Useful in industries requiring rigorous NDT: aerospace, oil & gas, power generation, petrochemical, automotive and fabrication/welding inspection.
• Helps procurement and asset management teams validate supplier claims and maintain inspection integrity.

Who Should Use This Standard

• Probe manufacturers and designers
• NDT calibration and testing laboratories
• Quality assurance engineers and NDT supervisors
• Procurement specialists and certification bodies

Related Standards

• ISO 18563‑1 (instrument characterization)
• ISO 18563‑3 (system verification)
• ISO 23243 (array ultrasound vocabulary)
• ISO 2400 and ISO 5577 (calibration block and ultrasonic vocabulary)

Keywords: ISO 18563-2:2024, ultrasonic phased array, array probes, non-destructive testing, probe characterization, FMC, TFM, contact technique, immersion technique, probe test report, acceptance criteria.