An Autonomous Oceanographic Sensor Array

P.I. Stokes, Malcolm （Scripps海洋学研究所）提案#:0220400 PIs建议构建一个强大的，廉价的传感器阵列，用于海洋和陆地环境。该系统将利用标准技术的组合，在高能环境中轻松部署密集的传感器阵列（多达96个传感器，在单个测井单元的8条电缆上）。所提出的传感器网络的一个重要优点是它可以以低成本建造，从而增加了该仪器被广泛使用的可能性。另一个优点是，为原型开发的时分多路复用技术将很容易适应其他传感器（即盐度，光强度）。在Scripps码头附近部署了一个用于测量压力和温度的原型阵列，并展示了该设计对于需要在100至1000米空间尺度上高分辨率监测环境条件的研究的实用性。该提案要求为基于原型技术的两个自主仪器包的开发提供资金。这些新一代阵列将通过结合更强大的布线方案显着扩展原型的功能；利用表面贴装电路实现单个传感器模块的小型化；并增加了一个自动数据记录微控制器，用于长期水下部署。一个仪器包将包括96个压力传感器（布置为12个单独的传感器在8个电缆元件上），另一个将包括96个精密热敏电阻。每个微控制器都可以编程，以模块化的方式记录压力，温度或其他环境传感器的任何组合的数据。pi建议将测试仪器作为当前资助项目的一部分，这些项目将受益于更高分辨率的采样。

P.I. Stokes, Malcolm (Scripps Inst. of Oceanography) Proposal #: 0220400The PIs propose to construct a robust, inexpensive sensor array for use in marine and terrestrial environments. This system will utilize a combination of standard technologies that will enable easy deployment of densely populated sensor arrays, (up to 96 sensors, on 8 cables in a single logging unit) in high-energy environments. An important advantage of the proposed network of sensors is that it can be built at low cost thus increasing the likelihood that this instrumentation will be widely used. Another advantage is that, the time-division multiplexing technology developed for the prototype will be easily adaptable to other transducers (i.e. salinity, light intensity). A prototype array constructed to measure pressure and temperature was deployed off Scripps Pier and showed the utility of the design for studies requiring high-resolution monitoring of environmental conditions over spatial scales of 100 to 1000 m. This proposal requests funding for the development of two autonomous instrument packages based on the prototype technology. These new generation arrays will significantly extend the capabilities of the prototype by incorporating a more robust cabling scheme; utilizing surface mount circuitry for miniaturization of individual sensor modules; and adding an autonomous data-logging microcontroller for long-term, underwater deployments. One instrument package would include 96 pressure sensors (arranged as 12 individual transducers on 8 cable elements) and the other would include 96 precision thermistors. Each microcontroller could be programmed to record data from any combination of pressure, temperature, or other environmental sensors in a modular fashion. The PIs propose to test the instruments as part of currently funded projects that would benefit from higher resolution sampling.