General purpose matrix arrays

Applications

Applications demanding good resolution at medium depth range, with  limited 3D steering

  • Weld inspection
  • Inspection of parts with complex geometry
  • General NDT

For larger 3D beam steering capability, see high density matrix arrays

For long range or high resolution inspection, see high resolution matrix arrays

Principle and Advantages

Matrix or 2D array transducers allow 3D beam focusing and scanning, thus opening up new possibilities

  • Control of the focal zone diameter in 3D, cylindrical beam
  • Inspection of volumes from limited points of access
  • Detection of defects that may have multiple, un-predetermined orientation

General Characteristics

  • Frequency from 500 kHz to 15 MHz
  • Unlimited number of elements, typically 16 to 1024
  • High S/N ratio and optimized pulse length thanks to coustic matching to wedge material (Rexolite, Plexiglas, PEI, etc)
  • Reproducibility of the inspection through the homogeneity of performance between the elements of the same probe, and between different probes of the same type
  • High reliability over time thanks to a robust, watertight design, compatible with difficult industrial environments

Standard configurations

Freq.
(MHz)

Elementary active size
(mm)

Total active size
(mm)

Nb of elements

10 0.6 x 0.6 10 x 10 16 x 16 = 256
5 1 x 1 16 x 16 16 x 16 = 256
5 1 x 1 11 x 11 11 x 11 = 121
2.25 1.4 x 1.4 22 x 22 16 x 16 = 256
2.25 2 x 2 22 x 22 11 x 11 = 121

 

Freq.
(MHz)
Active diameter
(mm)
Average pitch
(mm)
Nb of elements
5 10 1.2 64
5 16 1.4 128
2.25 23 2 128

 

Options

  • Hard face for use in direct contact
  • Integrated wedge
  • Housing customized for the mechanical environment (inspected parts, scanner, wedges, etc)
  • Customized cabling
  • Adaptation to a particular environment (temperature, pressure, radiation,chemical compatibility)
  • Halogen-free for nuclear environments
  • Water inlets