Harbin Institute of Technology, Harbin 150001, China.
OBS Laboratory, Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
Sensors (Basel). 2023 May 23;23(11):4995. doi: 10.3390/s23114995.
This paper presents a new broadband ocean bottom seismograph (OBS) developed by the SUSTech OBS lab for passive-source seafloor seismic observations. This instrument, called Pankun, has several key features that set it apart from traditional OBS instruments. In addition to the seismometer-separated scheme, these features include a unique shielding structure to minimize current-induced noise, a compact gimbal for accurate leveling, and low power consumption for extended operation on the seafloor. The design and testing of Pankun's primary components are thoroughly described in this paper. The instrument has been successfully tested in the South China Sea, demonstrating its ability to record high-quality seismic data. The anti-current shielding structure of Pankun OBS has the potential to improve low-frequency signals, particularly on the horizontal components, in seafloor seismic data.
本文介绍了由南方科技大学 OBS 实验室开发的一种新型宽频带海底地震仪（OBS），用于被动源海底地震观测。该仪器名为“盘古”，具有几个关键特点，使其有别于传统的 OBS 仪器。除了地震计分离方案外，这些特点还包括独特的屏蔽结构，以最大限度地减少电流感应噪声；紧凑的万向架，用于精确调平；以及低功耗，可在海底进行长时间作业。本文详细描述了“盘古”主要组件的设计和测试。该仪器已在南海成功测试，证明了其记录高质量地震数据的能力。“盘古”OBS 的抗电流屏蔽结构有可能改善海底地震数据中的低频信号，特别是水平分量的信号。
