Element Patterns
1D Circular
Advantages: elliptical or spherical beam with steering capability at different depths, typically used for curved targets.
Disadvantages: complex design and manufacturing.
Advantages: elliptical or spherical beam with steering capability at different depths and angles.
Disadvantages: complex design and manufacturing process, requires large number of pulser/receivers and complex programming, generates longitudinal waves only.
2D Segmented Annular
Advantages: spherical focusing at different depths, very good for detecting small reflectors.
Disadvantages: no steering capability, requires large aperture for sharp focusing, requires complex programming.
1D Annular
This is the most commonly used array plan in both straight beam and angle beam inspections.
Advantages: easily manufactured and mounted on wedges, focuses in one axis at different depths and angles.
Disadvantages: requires large size for deep focusing, beam divergences increases with angle and depth, no skewing ability.
1D Linear
2D Square
Advantages: steering capability in three dimensions, spherical or single-axis focus.
Disadvantages: complex design and manufacturing process, requires large number of pulser/receivers and complex programming.
Advantages: excellent steering capability, focuses in one axis at different depths and angles, reduces unwanted beam artifacts.
Disadvantages: complex design and manufacturing process, requires large number of pulser/receivers and complex programming.
1.5D Square or Rectangular Matrix
SELECT PATTERN
1D Linear
2D Square
1.5D Square
1D Annular
2D Annular
1D Circular