【摘要】 开展海底大地电磁探测需要有一套完善的海上施工方案。为解决海洋环境作业过程中遇到的工程技术问题 ,如探测仪器布放点位的选择、电路初始化设置以及设备的投放与回收方式等等 ,提出了有针对性的解决方法 :利用多波束声纳扫描和抓斗取样技术了解海底地形与底质 ;根据信号的频宽合理选取采集参数 ;研发与海上作业相关的专用硬件产品 ;用声控技术实现设备的回收等等。经过海洋探测试验 ,验证了上述方法的有效性。更多还原

【Abstract】 In order to carry out the seafloor magnetotelluric prospecting, a set of perfect operation schemes should be brought forward during the magnetotelluric prospecting. There are some engineer technologies during the operation: selection of positions for the instruments to be located, selection of the cuicirt parameters and putting down and withdrawal of the instruments. In this paper, the corresponding solutions have been given: the topography and the bottom material of the sea-floor could be known by using the multi beam sonar scan and the grab bucket sampling; the rational parameters were selected to make the acquisition go along successfully; the special hardware products corresponding to the marine operation have been developed; the withdrawal of the instruments has been carried out by using the acoustics release technology. The validity of the methods mentioned above had been testified by the marine experiments.更多还原