Sonoluminescence measurement of 1MHz ultrasonic cavitation and effect of dissolved gases
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概要
- 論文の詳細を見る
We measured the amount of hydroxyl radicals and sonoluminescence to investigate the condition of ultrasonic cavitation. The generation of OH. radicals and sonoluminescence upon ultrasonic radiation occurred with the same trend at various concentrations of N_2 and O_2 in water, so we found that sonoluminescence can be used to measure the amount of cavities as well as radicals. In the investigation of the cavity-generating area, in degassed water, cavities were generated at water surface, and in gas-dissolved water, cavities were weakly generated from the entire volume of water. As the result of varying the N_2 concentration or the dissolving condition at the water surface, we found that cavities were generated maximally at a certain gas concentration, and then decreased with excess dissolved gases. Cavitation did not occur in the degassed water, but occurred when gases dissolved from the water surface.
- 社団法人日本音響学会の論文
著者
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OHMI Tadahiro
New Industry Creation Hatchery Center, Tohoku University
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Ohmi Tadahiro
New Industry Creation Hatchery Center Future Information Industry Creation Center Tohoku University
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Hirayama Seigo
Research and Development Department, Kaijo Corporation
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Morinaga Hitoshi
Research and Development Department, Fujimi Incorporated
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Soejima Jun-ichiro
Research and Development Department, Kaijo Corporation
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Hirayama Seigo
Research And Development Department Kaijo Corporation
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Morinaga Hitoshi
Research And Development Department Fujimi Incorporated
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Soejima Jun-ichiro
Research And Development Department Kaijo Corporation
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Ohmi Tadahiro
New Industry Creation Hatchery Center (niche) Tohoku University
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