| 摘要 |
An elongated pipe is connected at an upper end to a pressurized fluid container and extends downwardly into water at the lower end. A valve is connected between the pressurized fluid container and the elongated pipe. A piston member is slidable within the elongated pipe. A diaphragm is connected at the submerged end of the pipe and includes seating structure for engaging the piston member. When the valve is opened, a high energy supply of fluid is directed against the piston member to force the piston member at high speed down the pipe into abutment with the seating structure. Compressional waves are thus created along the length of the elongated pipe, the diaphragm coupling the compressional waves into the adjacent water to create acoustic energy for use in marine exploration.
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