This has first proved that the maximum noise is mainly caused by the local vibration of acoustic generating body in the process of revolute cutting. 这一点首次证明了旋转锯切过程中，最大噪声是由主要发声体的局部振动引起的。
Hartmann hydrodynamic acoustic generator can be used for acoustic treatment and is characterized by low cost, simple construction, durability and convenient power source. 哈特曼流体动力式声波发生器是一种声处理发声器,具有成本低廉、结构简单、坚固耐用以及动力源方便等特点。
The acoustic generator combined with aerated-water-discharge technique can bring plugs out of hole effectively and remove plugs in the formation, dredge fluid channels, improve percolating environment and increase oil well productivity. 该声波发生器与混气水排液工艺相结合,可以达到解除地层堵塞、疏通液流通道、改善油层内部流体的渗流条件、增加油水井产能的目的,而且可以将堵塞物有效携带出井筒。
The field application results show that the permeability of low-permeability cores and high-permeability cores can increase by 126.5% and 177.l% respectively by using Hartmann acoustic generator. 相关的现场应用试验结果表明，经哈特曼发声器作用后，较低渗透率岩心的渗透率提高了126.