哈尔滨工程大学学报2012，Vol.33Issue(7)：911-915,5.DOI:10.3969/j.issn.1006-7043.201108016
热探针法测量超声场强度分布
Ultrasound intensity distribution measur ement using a thermoelectric probe
摘要
Abstract
A thermoelectric probe was used to measure the one-dimensional and two-dimensional ultrasound intensity distribution of an ultrasound horn in homogeneous water systems.This allowed the mechanism of the ultrasound enhanced chemical process to be obtained.The intensity attenuated as the distance increased in the axial and radial directions,which was in accordance with the standard attenuation function.As the reflection of a flask wall,standing waves were formed at the axial and radial directions.The effects of ultrasound frequency and ultrasound electric power on ultrasound intensity distribution were investigated by constructing two-dimensional ultrasound intensity distribution images.A bubble cloud was formed around the horn tip.The results indicate that the intensity at 40 kHz is higher than at 30 kHz.While under the same frequency,the influence of electric power on ultrasound intensity is slight because of the shielding of the bubble cloud.关键词
热探针/超声场/空化/声强/气泡云Key words
thermoelectric probe/Ultrasound field/cavitation/ultrasound intensity/bubble cloud分类
化学化工引用本文复制引用
董红星,杨晓光,汤金勇,吕远,岳国君..热探针法测量超声场强度分布[J].哈尔滨工程大学学报,2012,33(7):911-915,5.基金项目
国家自然科学基金资助项目(21076049). （21076049）
