硬件系统集成——海底大地电磁测量的关键技术

海底大地电磁探测是一项多学科交叉和多技术渗透的前缘课题 ,课题的目标之一是研制用于海底数据采集的大地电磁测量系统。入海的难度给该系统提出了特殊要求 ,即必须解决海下仪器安全及海面与海底间的设备运载问题。由于涉及多项技术内容 ,每项技术由相应的硬件完成 ,因而整个系统包括了多个集成部件 ,各部件分别实现密封承压、重载下沉、水下布极、释放上浮等各项功能。在系统集成过程中 ,除了要考虑各部件的协调装配外 ,系统整体指标的完善性是研究的重点。根据海上作业的特点和船只设备的具体情况 ,系统集成方案解决了结构、强度、平衡、保护等设计难题 ,提出了若干个既实用又可靠的工程技术方法。集成后的系统经过了从甲板投放、海底数据采集到设备回收全过程的试验。

HARDWARE SYSTEM INTEGRATION-THE KEY TECHNIQUE OF SEAFLOOR MAGNETOTELLURIC EXPLORATION

The seafloor magnetotelluric exploration is a frontier subject involved in many disciplines and knowledges, one of the Project's targets is to develop a magnetotelluric exploration system for seafloor data acquisition. The equipment should be put on the seafloor which demands some speciality of system, namely it is necessary to ensure the safety of the eguipment and facilitate carrying it from offing to seafloor or otherwise. Beacuse of involving in diversiform technologies which is realized by hardware, the system includes many integrated devices with the functions of sealing to resist pressure, loading to sink, laying electrodes underwater, and releasing to reclaim. During the system integration, the performance of whole system is the key beside every parts matching. According to the feature of task and instrument at the sea, the system integration has solved many difficult problems, such as frame configuration, tensile strength, posture balance, safety measures, and realized some practical and reliable techniques. In July 2000, the integrated system carried out the whole process of experiment: putting it in the sea from the deck, data acquisition on the seafloor,and reclaiming equipments.