水声海洋水文环境参数获取技术研究
文献类型：学位论文
| 作者 | 颜晗 |
| 学位类别 | 博士 |
| 答辩日期 | 2007-06-08 |
| 授予单位 | 中国科学院声学研究所 |
| 授予地点 | 声学研究所 |
| 关键词 | CTD PSoC 动态资源重构 ZigBee 光纤光栅传感器 XBT |
| 其他题名 | Research on Acquirement Technologies of Underwater Acoustical Parameters |
| 学位专业 | 信号与信息处理 |
| 中文摘要 | 海洋CTD是研究水声问题和应用水声设备过程中最重要的环境参数。本文在综合分析现有各种CTD测量仪器特点的基础上，面向实际应用，开展了针对水声的海洋环境参数获取技术研究。 论文分析讨论了基于传统传感器进行CTD测量的基本原理和方法，包括传感器选择、测量电路设计、误差来源及改善精度的措施等。然后应用先进的片上可编程技术，在一片PSoC芯片上实现了完整的CTD三参数测量前端的设计。由于PSoC的灵活性，特别是设计中动态资源重构技术的应用，相对于常规设计方案，目标系统的集成化程度大大提高，具有简捷、轻便、低功耗和高可靠性特征；而相对ASIC设计，则具有成本低、开发周期短的优势。所实现的目标系统可以在多种类型CTD仪器中应用。 海洋温度剖面对于水声通信和探测设备的性能都具有决定性的影响，因此快速获取局域海区的温度剖面数据，具有迫切的需求和实用意义。本文提出局域海区温度剖面快速测量的概念，设计了基于PSoC测量前端和拓展的ZigBee无线个人网络技术进行数据传输的方案和实验系统。该系统具有低功耗、自动组网、快速布放和易于扩展的特点，将其用于海上小范围、小批量测量设备之间的网络化数据传输是一种新颖而有益的尝试。本文还对海上实际应用中的问题和系统的拓展进行了分析讨论。 鉴于光纤传感器日益成熟并获得广泛应用，却鲜见于海洋环境测量的实际情况，本文探讨了在海洋温深测量中应用新型光纤传感技术的问题。分别给出了光纤布拉格光栅传感器的原理和模型，说明了采用单根光纤实现海洋温深双参量测量的可行性，分析了实际应用中存在的问题，并对解决途径进行了讨论。最后提出了应用光纤光栅传感器的新型XBT系统的设计方案，并与传统设计进行了对比。研究工作初步展示了光纤光栅传感器在海洋温度和深度测量方面独特的优势和应用前景。 |
| 英文摘要 | Conductive、temperature and depth are the most important parameters in the areas of underwater acoustical research and application. After analysis of the existing CTD systems’ characteristics, research on acquirement technologies of underwater acoustical parameters was made in this dissertation. First, investigation, including sensors choices、detect circuits design、sources of errors and improvement of precision, was done about the theories and methods of the existing CTD based on traditional sensors. Making use of the advanced technology of programmable system on chip, perfect design was carried out with only one PSoC chip to detect the conductive、temperature and depth. Using the flexibleness, especially the powerful re-configure, this new type CTD is characterized by smaller size, lower power dissipation, higher reliance and lower cost, shorter exploiter period compared with the design on ASIC. The new type CTD equipment can be used in many kinds of CTD instruments. It is badly needed to obtain the temperature profile parameters of partial sea field because the temperature profile is crucial to the underwater acoustical communication and detecting systems. The dissertation gives the resolution of a new type CTD design based on PSoC and distance enhanced ZigBee technology. The system is proved to be lower power dissipation, easily distributed and easily form network. It is salutary attempt to communication between these equipments in part area of the sea. Actual problems of the systems were also discussed and solved in the case of application in the sea. With lots of incomparable advantages, the optical fiber sensor has become widely used except in the area of underwater acoustical environment. Feasibility analysis was done in detecting the CTD parameters with fiber Bragg grating. After present the theory and the model, feasibility of temperature and depth detect using fiber was given. Finally the project of using fiber Bragg grating to design new type XBT was carried out. Compared with the existing XBT, the primary work shows there are inimitable predominance and nice foreground in using fiber Bragg grating sensor. |
| 语种 | 中文 |
| 公开日期 | 2011-05-07 |
| 页码 | 115 |
| 源URL | [http://159.226.59.140/handle/311008/216]  |
| 专题 | 声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文 |
| 推荐引用方式 GB/T 7714 | 颜晗. 水声海洋水文环境参数获取技术研究[D]. 声学研究所. 中国科学院声学研究所. 2007. |
入库方式： OAI收割
来源：声学研究所
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