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首页> 外文期刊>Acoustical physics >Optical breakdown in a liquid: The slow phase of the dynamics of cavity collapse and a noncontact technique for pressure measurement in a liquid
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Optical breakdown in a liquid: The slow phase of the dynamics of cavity collapse and a noncontact technique for pressure measurement in a liquid

机译：液体中的光学击穿：腔体塌陷动力学的慢相和用于液体中压力测量的非接触技术

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摘要

It is demonstrated that, in the case, of optically probing the breakdown region, a pulsed signal is formed due to the acoustic pulses produced by the breakdown and collapse of the cavitation cavity. The measured dependence of the delay time of the second pulse on the hydrostatic pressure in the liquid and the pressure of saturated vapor agrees well with the theoretical dependence corresponding to the hydrodynamic model of the cavity. On the basis of the optical cavitation effect, a technique is proposed for a noncontact measurement of hydrostatic pressure in a liquid enclosed in a sealed cell. The range of applicability of the technique is evaluated. (c) 2005 Pleiades Publishing, Inc.
机译：已经证明，在光学探测击穿区域的情况下，由于由空化腔的击穿和塌陷产生的声脉冲形成了脉冲信号。测得的第二个脉冲的延迟时间对液体中的静水压力和饱和蒸汽压力的依赖性与对应于腔体的流体力学模型的理论依赖性非常吻合。基于光学空化效应，提出了一种非接触式测量封闭在密封室中的液体中静水压力的技术。评估该技术的适用范围。 （c）2005年Pleiades Publishing，Inc.

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