声致发光法测量超声空化场的实验研究  

Study on measurement of ultrasonic cavitation field with sonoluminescence

作　　者：王巧霞[1,2] 牛勇[1] 

机构地区：[1]陕西师范大学物理学与信息技术学院,陕西西安710062 [2]延安大学西安创新学院,陕西西安710100

出　　处：《陕西师范大学学报（自然科学版）》2008年第6期43-46,共4页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(10870654)

摘　　要：依据鲁米诺增强声致发光原理,采用微光测量系统,对超声清洗槽内空化声场进行了测量,分析了声致发光强度与功率密度及驱动频率的关系.结果表明,当输入功率密度超过声致发光阈值时,液体中才出现声致发光现象;同一功率密度条件下,不同超声频率发光强度不同.According to the principle of Luminol increasing sonoluminescence （SL）, the ultrasonic field in cleaning tank is measured with the glimmer measurement system and the relationship between SL intensity and both the power density and acoustic frequency is analyzed. The results show that only when the input power density exceeds the threshold value of SL intensity, SL will happen. Moreover, in the same power density, different frequency correspond to different luminous intensity.

关 键 词：声致发光 微光测量系统 空化 

分 类 号：O426.1[理学—声学]