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Comparison of the effects of water temperature on the photoacoustic signals
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《Chinese Journal of Acoustics》 1991年第2期119-124,共6页
Acoustic impulses produced through the mechanism of the laser-induced breakdown in water have been investigated in the range from 0℃ to room temperature. Differently from the acoustic impulses produced via thermal ex... Acoustic impulses produced through the mechanism of the laser-induced breakdown in water have been investigated in the range from 0℃ to room temperature. Differently from the acoustic impulses produced via thermal expansion, the polarity and the amplitude of acoustic impulse produced via liquid breakdown mechanism do not change with water temperature. This indirectly proves that the production of acoustic impulse is due to the expansion of the cavity itself which includes plasma. A semiempirical description of this phenomenon is given in this paper. 展开更多
关键词 Comparison of the effects of water temperature on the photoacoustic signals
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