地球自由振荡的折叠摆测量
Folded Pendulum Measurements of Earth's Free Oscillations
摘要：
地球几乎不间断的自由振荡（而不是强烈地震后出现的更大、寿命更长的正交模）是在一台用于研究地表物理的倾斜敏感仪器的记录中偶然发现的。后来的倾斜仪研究证明了自相关的有用性，这些通常短暂的本征模的常规研究。最近的研究表明，许多倾斜敏感仪器能够观察到这些振荡-如果其电子设备的低频响应不被抑制，就像传统设计一样。
英文摘要：
The nearly-incessant free oscillations of the Earth (not the larger, long-lived normal modes seen following intense quakes) were first observed by accident in the record of a tilt-sensitive instrument designed to study surface physics. Later tiltmeter studies demonstrated the usefulness of autocorrelation for the routine study of these normally short-lived eigenmodes. More recent studies suggest that many tilt-sensitive instruments are capable of observing these oscillations--if the low-frequency response of their electronics is not suppressed, as is customary with conventional designs.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
