Analysis of shock wave measurements in water by a piezoelectric pressure probe
Analysis of shock wave measurements in water by a piezoelectric pressure probe
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DOI：
10.1063/1.1630832
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发表时间：
2004
影响因子：
1.6
通讯作者：
A. Grinenko;V. Gurovich;Y. Krasik;A. Sayapin;S. Efimov;J. Felsteiner
中科院分区：
文献类型：
--
作者：
A. Grinenko;V. Gurovich;Y. Krasik;A. Sayapin;S. Efimov;J. Felsteiner
水下电线爆炸发生在几微秒的时间尺度的调查需要测量的压力波与纳秒上升时间和微秒下降时间。各种类型的压力计用于此目的，然而，它们似乎都不适合于此任务，因为压力波的频率范围位于107和109 Hz之间，而所有类型的机械压力计具有低于107 Hz的带宽。因此，需要对测量值进行数学处理以重建实际压力波形。本文提出了一种基于能量守恒要求和傅里叶分析的信号处理算法，用于水下导线电爆炸产生的压力波的波形重建。实验中使用的压力计是由Piezo-Electronics，Inc.生产的带宽低于1 MHz的PCB 119 A12型压力计。压力波是由水下电爆炸产生的。
Investigation of underwater electrical wire explosions occurring in the time scale of few microseconds requires a measurement of pressure waves with nanosecond rise time and microsecond fall time. Various types of pressure gauges are used for this purpose, however, none of them seems to be suitable for the task since the frequency range of the pressure waves lies between 107 and 109 Hz, whereas all types of mechanical gauges have a bandwidth below 107 Hz. Therefore, a mathematical processing of measurements is required for reconstruction of the actual pressure wave forms. In this article, a signal processing algorithm, based on energy conservation requirements and Fourier analysis, for reconstruction of the wave form of the pressure wave generated under water by electrical explosion of wires is proposed. The gauge used in the experiments is a PCB 119A12 type pressure gauge with a bandwidth below 1 MHz produced by Piezo-Electronics, Inc. Pressure waves were produced by underwater electrical explosion of a ...