Comparison of the Performance of a Wide Range of Sensors in Various Applications in the Field of Earthquake Engineering, From Low-noise to 2 G
Description:
There are no bad seismic sensors... but there are sometimes bad uses for them! Seismic instrumentation plays an important role in many areas of seismic hazard, from the measurement of weak ambient vibrations (e.g. for the implementation of non-invasive site characterization methods) to the recording of strong seismic motions. The most sensitive, high-performance instruments are often the most expensive, and when the number of sensors required for a study increases but budgets remain constant, low-cost sensors can also be a welcome addition. We present various tests carried out on a wide range of sensors, from broadband seismometers to MEMS accelerometers, including geophones and force-balanced accelerometers. These studies range from self-noise measurements in a low-noise seismic vault up to shake-table tests at 2g. We comment on our results, not only in terms of the intrinsic quality of each sensor, but also from the viewpoint of their suitability for different applications. Our study focuses on the 0.1-100 Hz frequency band.
Session: Fifty Years and Beyond of Broadband Seismic Instrumentation: Performance, Precision and Uncertainties [Poster]
Type: Poster
Date: 4/16/2025
Presentation Time: 08:00 AM (local time)
Presenting Author: Fabrice
Student Presenter: No
Invited Presentation:
Poster Number: 138
Authors
Fabrice Hollender Presenting Author Corresponding Author fabrice.hollender@cea.fr French Alternative Energies and Atomic Energy Commission, University of Grenoble Alpes, Institute of Earth Sciences |
Vincent Perron vincent.perron@cea.fr French Alternative Energies and Atomic Energy Commission, University of Grenoble Alpes, Institute of Earth Sciences |
Pauline Rischette pauline.rischette@cea.fr French Alternative Energies and Atomic Energy Commission, University of Grenoble Alpes, Institute of Earth Sciences |
Mickael Langlais mickael.langlais@univ-grenoble-alpes.fr University of Grenoble Alpes, Institute of Earth Sciences |
Isabelle Douste-Bacque isabelle.douste-bacque@univ-grenoble-alpes.fr University of Grenoble Alpes, Institute of Earth Sciences |
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Comparison of the Performance of a Wide Range of Sensors in Various Applications in the Field of Earthquake Engineering, From Low-noise to 2 G
Session
Fifty Years and Beyond of Broadband Seismic Instrumentation: Performance, Precision and Uncertainties