During reception when reflected sound arrives at the transducer _____________ are excited.

During reception when reflected sound arrives at the transducer _____________ are excited.

• A. A single element
• B. The elements farthest from reflection
• C. Multiple elements along the front of the probe
• D. All elements randomly

Answer: (C)

During reception, the echoes are picked up by many adjacent elements across the front of the transducer. As the reflected sound returns, multiple elements along the receive aperture are stimulated by the wave, each generating electrical signals. These signals are then combined through beamforming to form a focused image, improving sensitivity and lateral resolution. So the key idea is that the front-facing, multi-element portion of the array detects the echo, not just a single element or elements scattered randomly.

During reception, the echoes are picked up by many adjacent elements across the front of the transducer. As the reflected sound returns, multiple elements along the receive aperture are stimulated by the wave, each generating electrical signals. These signals are then combined through beamforming to form a focused image, improving sensitivity and lateral resolution. So the key idea is that the front-facing, multi-element portion of the array detects the echo, not just a single element or elements scattered randomly.