Måns Virding and Johan Söderberg - Ultra Sonus AB, Öregrund,
Sweden Ultrasound is the area of science involving sound waves
in the range from 20 kHz to 10 MHz. Ultra Sonus has developed an
ultrasound technology that involves "loud speakers" transmitting
sound waves through liquids, which contain gas bubbles. The
waves make the bubbles grow and then collapse releasing energy
equivalent to 10.000°C and a pressure of 500 bar. The phenomenon
is known as cavitation and is currently used in two application
areas: medical examinations and echo sonar where cavities (gas
bubbles) are detrimental, as well as purification and other
situations where cavities must be removed. The technology can
also be used in the cleaning of tools.