| 液体中声吸收对光声信号波形的影响 |
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| 引用本文： | 许龙江,戚诒让,张德勇,周如城.液体中声吸收对光声信号波形的影响[J].中国海洋大学学报(自然科学版),1996(1). |
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| 作者姓名： | 许龙江 戚诒让 张德勇 周如城 |
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| 基金项目： | 国家自然科学基金!19174027 |
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| 摘 要： | 研究液体中声吸收对三种具有不同波形的脉冲光声信号的影响，把吸声介质视为一个线性、时空不变的低通滤波器，得到了考虑声吸收后光声脉冲的幅值和波形随传播距离变化的表达式。
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| 关 键 词： | 液体中声吸收 脉冲光声信号 热膨胀 表面汽化 光击穿 |
EFFECTS OF SOUND ABSORPTION ON THE WAVEFORMS OF THE PHOTOACOUSTIC PULSES IN LIQUIDS |
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| Xu Longjiang, Qi Yirang, Zhang Deyong, Zhou Rucheng.EFFECTS OF SOUND ABSORPTION ON THE WAVEFORMS OF THE PHOTOACOUSTIC PULSES IN LIQUIDS[J].Periodical of Ocean University of China,1996(1). |
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| Authors: | Xu Longjiang Qi Yirang Zhang Deyong Zhou Rucheng |
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| Institution: | Electrical Engineering Department |
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| Abstract: | The effects of sound absorption on three kinds of photoacoustic pulses with different waveforms in liquids are investigated. The sound absorption medium is represented as a linear, time-invariant, space-invariant low-pass filter. The expression for the variations of the amplitudes and waveforms of photoacoustic pulses with propagation distance due to sound absorption are given. |
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| Keywords: | Sound absorption in liquids photoacoustic pulses thermal expansion surface vaporization laser-induced breakdown |
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