20.1 Ultrasound and Piezoelectric Effect
Ultrasound is a widely used, non-invasive medical imaging technique that allows visualization of internal body structures such as tissues, organs, and the fetus during pregnancy. This imaging method operates on a physical principle known as the piezoelectric effect, which is central to the working of an ultrasound transducer. The transducer plays a dual role; it generates ultrasound waves and detects the reflected signals from inside the body.