What is the piezoelectric component of the transducer assembly called?

• A. Elements
• B. Focal Point
• C. Near Field
• D. Diffraction

Answer: (A)

The piezoelectric component of a transducer is the element. Each active crystal or ceramic piece in the probe acts as an individual element, converting electrical energy into mechanical vibration to produce sound, and receiving echoes to convert them back into electrical signals. In an ultrasound probe, multiple elements form an array, allowing the beam to be steered and focused by selectively exciting different elements. The other terms refer to beam behavior or imaging geometry: the focal point is where the beam converges after focusing, the near field is the region close to the transducer where the beam is still forming, and diffraction describes how waves bend as they propagate. So the correct term for the piezoelectric component is element.