Sonication
（重定向自Ultrasonicator）
![A sonicator at the Weizmann Institute of Science during sonication](/Images/godic/202502/18/Sonicator0615.jpg")
![Schematic of bench and industrial-scale ultrasonic liquid processors](/Images/godic/202502/18/Schematic_of_bench_and_industrial-scale_ultrasonic_liquid_processors_produced_by_Industrial_Sonomechanics,_LLC0615.jpg")
Sonication is the act of applying sound energy to agitate particles in a sample, for various purposes. Ultrasonic frequencies (>20 kHz) are usually used, leading to the process also being known as ultrasonication or ultra-sonication.
In the laboratory, it is usually applied using an ultrasonic bath or an ultrasonic probe, colloquially known as a sonicator. In a paper machine, an ultrasonic foil can distribute cellulose fibres more uniformly and strengthen the paper.