High density matrix arrays

Applications

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

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 orientations

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 acoustic 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)
Number of elements
2
1.2 x 1.2
10 x 10
8 x 8 = 64
2
1.2 x 1.2

13 x 13

11 x 11 = 121
5
0.6 x 0.6
5 x 5
8 x 8 = 64
5
0.6 x 0.6
7 x 7
11 x 11 = 121
5
0.6 x 0.6
10 x 10
16 x 16 = 256
10
0.3 x 0.3
5 x 5
16 x 16 = 256

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
Example of matrix array probe with screw-in delay line