Generation of acoustic sound in water by pulsed high power electrical discharges

通过脉冲高功率放电在水中产生声音

• 批准号: 2132493
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2132493
• 关键词: Generation; acoustic; sound; water; pulsed

The generation of powerful pulsed acoustic sound in water is based on the spark breakdown produced between a pair of immersed metallic electrodes by applying a voltage impulse to develop an electric field higher than the critical breakdown field of water. The electric field-time breakdown characteristics of water mainly depend on the water conductivity and on the rise time and duration of the voltage impulse and breakdown mechanisms were identified.The main aim of the research is to improve the understanding of the physics and technology related to underwater discharges for their potential use as a powerful acoustic source for various applications.

在水中产生强大的脉冲声波是基于一对浸入金属电极之间产生的火花击穿，通过施加电压脉冲来形成高于水的临界击穿场的电场。水的电场-时间击穿特性主要取决于水的电导率以及电压脉冲的上升时间和持续时间，并确定了击穿机制。该研究的主要目的是提高对水下放电相关物理和技术的理解，了解水下放电作为各种应用的强大声源的潜在用途。