what transducer component is designed to control ringing of the piezoelectric element?\n\na) backing…

what transducer component is designed to control ringing of the piezoelectric element?\n\na) backing material\nb) electrical insulator\nc) matching layer\nd) radiofrequency shield\ne) lens
Answer
Brief Explanations:
Backing material in a transducer is used to dampen and control the ringing of the piezoelectric element, reducing its after - vibrations and improving resolution. Electrical insulators prevent electrical short - circuits, matching layers improve acoustic coupling, radiofrequency shields protect from electromagnetic interference, and lenses focus acoustic waves.
Answer:
A. Backing material