The ultrasonic cutter is composed of a “transducer” that generates vibration and an “oscillator” that drives the transducer. A piezoelectric element is used for the transducer. When voltage is applied, the piezoelectric element displaces the transducer by a few micrometers.
Ultrasonic food cutting uses high-frequency vibratory knives. Applying ultrasonic vibration to a cutting tool creates a nearly frictionless cutting surface and can slice a multitude of food products cleanly without smearing.