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用于观测海洋可控源电磁信号的海底可控源电磁接收机,由于投放过程的随机性,需要借助专门的姿态模块获取位于海底的接收机工作过程中所处的三轴姿态信息(方位角、俯仰角、横滚角).受底流冲击及底质不稳等因素影响,接收机可能在海底发生位移,因此有必要连续观测其三轴姿态信息.该姿态记录装置由水下单元和甲板单元组成,其中甲板单元为水下单元提供时间服务;甲板单元由密封盒、水密电缆、时间服务电路组成.水下单元硬件由压力舱、锂电池组、姿态记录电路、水密接插件组成;水下单元重点解决了高精度三轴姿态观测、长时间连续工作、大容量存储等技术难题.并为姿态记录装置开发了用户显控软件,用于实现数据传输、显示、回放、成图、格式转换等功能.该装置典型技术指标为观测角度误差:±1°,连续工作时间:40day(1min采样间隔),存储空间:64 MB,用户接口:USB2.0,工作水深:2000 m,水中重量:100g.2014年进行的海洋试验验证了该装置的有效性及可靠性.
Due to the randomness of the launch process, a special attitude module needs to be used to obtain the three-axis attitude information of the receiver located on the seafloor during operation (azimuth angle , Pitch angle, roll angle) .Because of underflow impact and instability of substrate, the receiver may be displaced on the seafloor, so it is necessary to continuously observe its three-axis attitude information.The attitude recording device consists of underwater unit and deck Unit, wherein the deck unit provides the time service for the underwater unit; the deck unit is composed of a seal box, a watertight cable and a time service circuit, the underwater unit hardware consists of a pressure cabin, a lithium battery pack, a posture record circuit and a watertight connector; The next unit focused on solving the technical problems of high-precision three-axis attitude observation, long-time continuous operation, large-capacity storage, etc. And developed a user control software for gesture recording device for data transmission, display, playback, mapping, Conversion, etc .. The typical technical indicators of the device is the observation angle error: ± 1 °, continuous working time: 40day (1min sampling interval), storage space: 64 M B, User Interface: USB2.0, working depth: 2000 m, underwater weight: 100g.