Phased array transducers are associated with producing sector or fan-shaped images due to electronic steering.

Phased array transducers are associated with producing sector or fan-shaped images due to electronic steering.

• A. They produce linear, rectangular scans.
• B. They cannot focus.
• C. They generate sector or fan-shaped images due to electronic steering.
• D. They always have fixed imaging planes.

Answer: (C)

Electronic steering in phased array transducers directs the beam at multiple angles by applying precise time delays across the array elements. The beams originate from the transducer face and fan out as the steering angles change, creating a sector or fan-shaped image field rather than a rectangular, linear scan. This wedge-shaped view comes from sweeping beams across a limited angular range from a fixed apex. Phased arrays can also focus electronically, but the hallmark here is that steering across angles produces the sector imaging pattern rather than a fixed plane.

Electronic steering in phased array transducers directs the beam at multiple angles by applying precise time delays across the array elements. The beams originate from the transducer face and fan out as the steering angles change, creating a sector or fan-shaped image field rather than a rectangular, linear scan. This wedge-shaped view comes from sweeping beams across a limited angular range from a fixed apex. Phased arrays can also focus electronically, but the hallmark here is that steering across angles produces the sector imaging pattern rather than a fixed plane.