ultragarsinis
Ultragarsinis is a Lithuanian adjective meaning ultrasonic. In scientific and engineering contexts, it describes phenomena, devices, and processes that operate at ultrasonic frequencies—mechanical waves with frequencies above the upper limit of human hearing.
Ultrasonic frequencies generally start above 20 kHz and extend into the megahertz (MHz) range. Applications are
Key technologies involve transducers that convert electrical energy into mechanical oscillations. Most ultrasonics rely on piezoelectric
Common applications include medical imaging (ultrasonography, Doppler), therapeutic ultrasound (high-intensity focused ultrasound or HIFU), nondestructive testing
Safety and regulation emphasize controlling acoustic output to minimize tissue heating and cavitation risks in medical
Etymology: the term derives from ultra-, beyond, and sonic, related to sound. In many languages, including Lithuanian,