Encyclopedia of Earthquake Engineering

2015 Edition
| Editors: Michael Beer, Ioannis A. Kougioumtzoglou, Edoardo Patelli, Siu-Kui Au

Seismic Accelerometers

  • Gerardo AlguacilEmail author
  • Jens Havskov
Reference work entry
DOI: https://doi.org/10.1007/978-3-642-35344-4_176

Synonyms

Broadband seismometers; Force-balance accelerometers; MEMS accelerometers; Passive seismometers; Seismic recorders; Servo-accelerometers; Strong ground motion

Introduction

Earthquake ground motion ranges in amplitude from a few nanometers (e.g., for a distant earthquake or a local microearthquake) to several meters close to the fault causing a big quake. It is very difficult to record that wide range of signals with a single type of instrument. Seismometers are designed to be very sensitive for detecting weak signals of ground motion and have a response proportional to ground velocity in a frequency band typically from 0.01 to 100 Hz. On the other hand, strong ground motion instruments are in general less sensitive and may manage on scale large ground motion amplitudes. This strong ground motion may reach peak accelerations above 2 g (g is gravity acceleration) and peak velocities higher than 3 m/s (Anderson 2010). The motion experienced at specific points in a building or...

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Instituto Andaluz de GeofísicaUniversity of GranadaGranadaSpain
  2. 2.Department of Earth ScienceUniversity of BergenBergenNorway