Ultrasound

: The principle of ultrasonic application in cleaning is that the high-frequency oscillation signal emitted by the ultrasonic generator is converted into high-frequency mechanical oscillation by the transducer and then propagated into the medium. In the cleaning solvent, ultrasonic waves radiate forward in the cleaning liquid with alternating dense and sparse areas, causing the liquid to flow and generate tens of thousands of tiny bubbles. The tiny bubbles (cavitation nuclei) existing in the liquid vibrate under the action of the sound field. When the sound pressure reaches a certain value, the bubbles grow rapidly and then suddenly close. When the bubbles close, shock waves are generated, creating thousands of atmospheres of pressure around them, which break down insoluble dirt and disperse it in the cleaning liquid. When solid particles are wrapped in oil and adhere to the surface of the cleaning part, the oil is emulsified and the solid particles fall off, thus achieving the purpose of purifying the surface of the cleaning part.

Application of Ultrasound in Medicine