Feng Ruo, Zhao Yiyun, Zhu Changping, Mason T J
State Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, PR China.
Ultrason Sonochem. 2002 Oct;9(5):231-6. doi: 10.1016/s1350-4177(02)00083-4.
The paper reports the enhanced effect of multi-frequency ultrasonic irradiation on cavitation yield. The cavitation yield is characterized by electrical conductivity determination, fluorescence intensity determination and iodine release method. Two-frequency (28 kHz/0.87 MHz) orthogonal continuous ultrasound, two-frequency (28 kHz/0.87 MHz) orthogonal pulse ultrasound and three-frequency (28 kHz/1.0 MHz/1.87 MHz) orthogonal continuous ultrasound have been used. It has been found that the combined irradiation of two or more frequencies of ultrasound can produce a significant increase in cavitation yield compared with single frequency irradiation. The possible mechanisms of the enhanced effect are briefly discussed.
该论文报道了多频超声辐照对空化产率的增强作用。空化产率通过电导率测定、荧光强度测定和碘释放法来表征。使用了双频（28 kHz/0.87 MHz）正交连续超声、双频（28 kHz/0.87 MHz）正交脉冲超声和三频（28 kHz/1.0 MHz/1.87 MHz）正交连续超声。研究发现，与单频辐照相比，两种或更多频率超声的联合辐照可使空化产率显著提高。文中简要讨论了这种增强作用的可能机制。
