An Autonomous Oceanographic Sensor Array

P.I. Stokes，Malcolm（斯克里普斯海洋学研究所）提案编号：0220400 PI建议构建一个用于海洋和陆地环境的鲁棒、廉价的传感器阵列。该系统将利用标准技术的组合，使密集的传感器阵列（多达96个传感器，在一个单一的测井单元8电缆）在高能量环境中的部署变得容易。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，从而增加了这种仪器将被广泛使用的可能性。另一个优点是，为原型开发的时分复用技术将很容易适应其他传感器（即盐度，光强）。斯克里普斯码头外部署了一个用于测量压力和温度的原型阵列，并显示了该设计在需要对100至1000米空间尺度上的环境条件进行高分辨率监测的研究中的实用性。该提案要求为在原型技术的基础上开发两套自主仪器提供资金。这些新一代阵列将通过采用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;并为长期水下部署添加自主数据记录微控制器。一个仪器包将包括96个压力传感器（在8个电缆元件上布置为12个单独的换能器），另一个将包括96个精密热敏电阻。每个微控制器可以被编程为以模块化方式记录来自压力、温度或其他环境传感器的任何组合的数据。项目研究员建议测试这些仪器，作为目前资助的项目的一部分，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.