Development and Deployment of Seafloor Tiltmeters

主要研究人员通过先前的资助开发了短基线和长基线倾斜仪。在大约10次海底部署中记录了短基线仪器的性能，其漂移速率约为每天1微度，灵敏度为0.3微度。对长基线仪器进行的初步实验室测试表明，降低了漂移率，灵敏度相似。这些仪器的开发和测试将继续进行。工程任务包括延长底部时间、分析地面耦合和部署特性、开发短基线调平表以纳入长基线仪器，以及根据现场测试对仪器进行微调。

The principal investigators have developed short and long baseline tiltmeters through prior funding. Short baseline instrument performance has been documented in about ten ocean floor deployments at drift rates on the order on one microradian per day and sensitivity of 0.3 microradian. Initial laboratory tests of the long baseline instrument indicate similar sensitivities are reduced drift rates. The development and testing of these instruments will continue. Engineering tasks included the extension of bottom time, analysis of ground coupling and deployment characteristics, development of short baseline leveling table for including in the long baseline instrument, and fine tuning the instruments in response to field tests.