Development of a Low-Cost RAFOS and Telemetry Sound Source

9811289罗斯比基金提供设计和建造一个重量轻，廉价的声源，用于海洋环流和其他海洋研究应用。在海洋中追踪中性浮力漂浮物的路径依赖于笨重而昂贵的声源。新的声学投影仪基于经典的谐振管设计，但使用合成泡沫来塑造谐振腔，而不是钢或铝。新设计的目的是比现有设备成本更低，浮力更强，从而降低部署和系泊成本。在声学投影仪设计的同时，还将设计和制造必要的电子设备和电源组。这些将包括时序电路和输出放大器。通过采用模块化设计方法，导航功能（时钟）可以被替换为声学遥测功能（应答器）。新的声源旨在满足需要有限区域覆盖的研究项目的需求，包括具有复杂地形的区域，以及对海底仪器实时声学遥测的日益增长的需求。

9811289 Rossby Funding is provided to design and build a light-weight, inexpensive sound source for ocean circulation and other ocean research applications. Tracking the paths of neutrally-buoyant floats within the ocean has relied on heavy and expensive acoustical sound sources. The new acoustic projector is based on the classical resonant pipe design, but uses syntactic foam to shape the resonant cavity instead of steel or aluminum. The new design is intended to be less costly than existing devices and more buoyant, thereby reducing deployment and mooring costs. In parallel with the acoustic projector design, the necessary electronics and power pack will be designed and built. These will include the timing circuitry and output amplifiers. By using a modular design approach, the navigation function (clock) can be swapped out and replaced with an acoustic telemetry function (transponder). The new sound source is intended to meet the needs of research programs requiring limited area coverage, including areas with complex topography, and the growing need for real-time acoustic telemetry from ocean bottom instrumentation.