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Ocean acoustic field observation buoy system based on vector sensor

2013-08-31
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Abstract: With three-dimensional vector sensor as the core, a submerged buoy system for observing ocean vector acoustic field is constructed. The submerged buoy is fixed by a depth anchor and works at a specified sea depth, which can complete the observation and storage of ocean vector acoustic field information. The vector acoustic signal output by the vector sensor is sampled after pre-processing and stored in the micro-flash memory card (CF) of the submerged buoy in the file allocation table (FAT) 32 file format; the underwater posture of the vector sensor is given in real time by the three-dimensional geomagnetic attitude meter in the submerged buoy. The submerged buoy integrates a USB transmission module, and after recovery, the data can be uploaded to the PC through the USB serial port. The sea trial results show that the submerged buoy system can correctly record the ocean vector acoustic field information and can work stably underwater for more than 90 days.

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