Phased Array Transducers

A phased array probe can be compared to a large single element transducer whose active area has been subdivided into small segments or elements. When connected to a phased array instrument, the angle and focus of the sound beam can be changed on each pulse repetition.

Both the phased array instrument and probes can be customized to application specific needs, regardless of the tested material or asset. GE will develop a tailored phased array solution with precise specifications. Users have the ability to both steer and focus the sound beam through a range of angles and focal depths, resulting in vast improvements in productivity and reliability for inspections.

Additional Information

Ultrasonic Phased Array Tranducers

Benefits of Phased Array Transducers

  • Save Time - Reduce time required to change test setups and reduce scan time
  • Reduce Complexity - Eliminate multiple inspections with fixed angle and fixed focus probes
  • Greater Detectability - Increase sensitivity and signal to noise ratio with electronic focusing
  • Increase Flexibility - Inspect hard to access areas from a single contact point
  • Simplicity of Use - Reduce or eliminate mechanical and manual manipulation

Types of Phased Array Transducers

Linear Phased Array Transducer
Linear

Single row of elements, usually created by dicing a larger rectangular piezoceramic. Beam steering in a single plane.
Linear Curved Phased Array Transducer
Linear Curved

Single row of elements that have been curved to produce a desired beam shape or conform to the geometry of the part under test. Beam steering in a single plane.
2D Matrix Phased Array Transducer
2D Matrix

Elements arranged in a grid pattern. Can also be curved. Beam steering in three dimensions.