What is the role of the piezoelectric element in an ultrasound transducer?

The role of the piezoelectric element in an ultrasound transducer is central to its function as it is responsible for converting sound waves into electrical signals. When the piezoelectric material is subjected to an electrical current, it generates mechanical vibrations that produce ultrasound waves. Conversely, when ultrasound waves bounce back after hitting a tissue interface, the piezoelectric element can also detect these returning sound waves and convert them back into electrical signals for processing and imaging.

This dual functionality makes the piezoelectric element essential for the operation of ultrasound imaging devices, as it allows for both the generation and reception of ultrasound waves. Understanding this role is crucial for effectively interpreting and utilizing ultrasound technology in diagnostic procedures.