Phased Array Probe

Phased Array Transducer Uses

Phased array transducer is named after the arrangement of piezoelectric crystals, which is the most commonly used crystal. It is composed of a plurality of separate piezoelectric crystals in an array, adjusting the position and direction of the focus with the electronic system controlling and exciting each crystal unit according to certain rules and sequences.

The beam spot of the phased array transducer is narrow but it will expand according to the application frequency. Additionally, its beam shape is approximate to the triangle and the near-field resolution is poor. The frequency of the Stork phased array transducer is 2-5MHz, which can be used for abdominal organs, heart, such as cardiac examination, transesophageal echocardiography, the abdominal examination also the brain examination, etc.

Phased Array Probe VS Curvilinear

 When comparing phased array probes to curvilinear probes, it is important to consider the desired type of scanning and the location of the application. If you have a long scan that covers an area with high-z (thick) materials, then a phased array probe may be more suitable for your application. Phased array probes also have unique performance characteristics (such as beam attenuation) that make them great for measurements in non-conductive mediums such as food. However, if you are looking to acquire fast measurements and need to maintain small spot sizes due to measurement principles such as Absorption or Secondary Electrons or mapping applications such as eddy current or metal loss, then a curvilinear probe would be a much better choice. 

The footprint of phased array probe is smaller than convex transder although its frequency is also 2-5MHZ. The pahsed array transducer is ideal for cardiac and available for abdominal examinations.