Review: Inertial Sensors for Low-Frequency Seismic Vibration Measurement
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA(2012)
Abstract
The objective of this paper is to review recent advances in the sensors used to measure seismic linear vibrations at low frequencies. The main types of inertial sensors are reviewed: absolute displacement sensors, geophones, accelerometers, and seismometers. The working principle of each of them is explained, along with the general strategies to extend their bandwidth. Finally, the principle fundamental limitations of all inertial sensors are reviewed: tilt-to-horizontal coupling, zero-length springs, and sources of noise.
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Key words
Seismic Sensors,Inertial Navigation Systems,MEMS Sensors,Microseisms,Seismic Wave Studies
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