Why are ultrasound waves used for cleaning delicate objects such as jewelry?
They cause tiny vibrations that dislodge dirt
Ultrasound waves are sound waves with frequencies above the range of human hearing, typically greater than 20 kHz.
When ultrasound waves are passed through a liquid cleaning solution, they create rapid, high-frequency vibrations that generate microscopic bubbles, a process called cavitation.
These bubbles collapse and produce tiny shock waves that dislodge dirt, grease and grime from intricate surfaces such as jewelry, without damaging the delicate object.
Hence, ultrasound waves clean delicate objects because they cause tiny vibrations that dislodge dirt.
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