What principle does a phased array system operate on?

A phased array system operates on the principle of dynamic focusing and steering of the sound beam. This technology utilizes multiple transducer elements that can be electronically controlled to change the angle and focus of the sound beam in real time. By adjusting the timing of the signals sent to each individual element, the system can create a focused beam at various depths and angles without the need for mechanical movement. This capability allows for enhanced image quality and performance, making it possible to detect flaws and features in various materials with greater precision.

In a phased array system, the ability to steer the beam electronically means that operators can quickly adapt to changes in the scanning requirements, allowing for efficient and effective inspections. This flexibility is one of the key advantages of phased array technology compared to traditional ultrasound systems, where the beam orientation is often fixed or requires significant manual adjustments.