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Sound

How is ultrasound used for cleaning?

10/11/2024

Science

9th

Answers

Ultrasound cleaning uses high-frequency sound waves to detach dirt and grime from objects submerged in a cleaning solution. The high frequency of the ultrasound waves causes tiny bubbles (cavitation) in the liquid to form and collapse, creating localized areas of high pressure and temperature. This process dislodges particles of dust, grease, and other debris from the object’s surface, allowing them to be easily rinsed away.
Here’s a more detailed breakdown:
The Cleaning Solution: The object to be cleaned is placed in a container filled with a specialized cleaning solution.
Ultrasound Waves: A transducer, typically placed within the cleaning solution, emits high-frequency sound waves.
Cavitation: The sound waves create tiny bubbles (cavitation) in the cleaning solution.
Bubble Collapse: These bubbles rapidly form and collapse, generating tiny shockwaves and high-pressure jets.
Detachment of Dirt: These shockwaves and jets dislodge particles of dust, grease, and dirt from the object’s surface.
Rinsing: The detached particles are then rinsed away with the cleaning solution.

Nandita Jhajhria

28/04/2025