Photoacoustic monitoring of steam bubble cavitation in water superheated by TEA CO_2 laser

机译：TEA CO_2激光过热水中汽泡空化的光声监测

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Using a TEA CO_2 laser for explosive surface boiling of bulk water, oscillatory acoustic transients from steam bubbles were recorded using a contact photoacoustic technique. Multiple well-resolved, high-amplitude multi-MHz spectral features representing high-order combination acoustic oscillations of steam bubbles were revealed in spectra obtained by means of numerical Fast Fourier Transformation of these transients. A potential parametric generation mechanism for these high-order combination oscillation modes of steam bubbles is discussed.

机译：使用TEA CO_2激光对散装水进行爆炸性表面沸腾，使用接触光声技术记录了来自气泡的振荡声瞬变。通过这些瞬态的数值快速傅里叶变换获得的频谱中揭示了代表蒸汽泡的高阶组合声振荡的多个分辨良好的高振幅多MHz频谱特征。讨论了这些气泡的高阶组合振荡模式的潜在参数生成机理。

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《Photons Plus Ultrasound: Imaging and Sensing 2006; Progress in Biomedical Optics and Imaging; vol.7, no.9》|2006年|P.60861Y.1-60861Y.6|共6页
会议地点 San JoseCA(US)
作者
Sergey I. Kudryashov; Kevin Lyon; Susan D. Allen;
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作者单位

Department of Chemistry Physics, Arkansas State University, Jonesboro, AR 72467-0419, USA;

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会议组织
原文格式 PDF
正文语种 eng
中图分类光、激光生物医学;
关键词
TEA CO_2 laser; de-ionized water; contact photoacoustics; megasonics; steam bubbles; cavitation;

机译：TEA CO_2激光；去离子水；接触光声；超音速；气泡；汽蚀;

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Photoacoustic monitoring of steam bubble cavitation in water superheated by TEA CO_2 laser

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