The Versatility of Ultrasonic Energy

Ultrasonic energy is used for a surprising variety of functions in the food and packaging industries. Here we will explain a little about the technology, provide some references and sources, and, hopefully, stimulate some creative thinking.

The Basics
Sound is nothing more than pressure waves in some medium, such as liquid, air, or solids. Human hearing responds to pressure waves between 20 cycles per second (Hertz, Hz) and 20 kilo-Hertz (kHz). Pressure waves between 20 kHz and 1 mega Hertz (M…