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基于低频压力脉动是气蚀初生的伴生现象，分析了气蚀初生与出口压力脉动的机理，并对海水液压泵进行了气蚀初生特性的试验研究，通过识别气蚀和内泄对出口压力脉动信号时域和频域３ 个特征量的影响，得到了泵的气蚀初生判别规则。
Based on the low-frequency pressure pulsation is the primary cause of cavitation, the mechanism of cavitation primary and outlet pressure pulsation was analyzed. The cavitation primary characteristic of the hydraulic pump was studied. By identifying cavitation erosion and outlet pressure pulsation Signal time and frequency domain of the three characteristics of the amount of the pump cavitation primary discrimination rules.