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ultrasonic vibrations
Ultrasonic vibrations are used to clean jewellery. The items to be cleaned are placed in a neutral liquid, and the ultrasonic vibrations tend to induce cavitation in the fluid, thus loosening bonds between the dirt and the object. If the (jewels) are held in their mounts mainly by the dirt, then the jewel could loosen in the mount.
My toothbrush uses ultrasonic vibrations to help clean my teeth and gums.The sound of an ultrasonic dog whistle can be heard by dogs, but not by humans.
It cleans with vibrations of sound. You can clean floors and another variety of surfaces with it. It is used with a cleaning solution to clean surfaces.
Ultrasonic waves have more than 20,000 Hz (vibrations per second). Loudspeakers, or similar devices, need to be specifically designed to manage such high frequencies.
ultrasonic vibrations
The drivers that control the speakers' diaphragms are not designed to generate vibrations at ultrasonic frequencies.
It's not only safe it's very healthy to clean your vegetables and fruit with a ultrasonic food washer. It can help clean soil and pesticides and any other matter. Ultrasonic cleaners only use high speed vibrations no chemicals.
Ultrasonics. They are used in SONAR to range distance. Listening in on the ultrasonic band you can "hear" things you would have never guessed made any sound.
Ultrasonic anemometers are now being used in the field.
Thomas Robert Wallin has written: 'The influence of ultrasonic vibrations upon the physical features of activated sludge' -- subject(s): Activated sludge process, Flocculation, Industrial applications, Purification, Sewage, Ultrasonic waves