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| Titel |
Retrieval of Ocean Bottom and Downhole Seismic sensors orientation using integrated MEMS gyroscope and direct rotation measurements |
| VerfasserIn |
A. D'Alessandro, G. D'Anna |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Improving seismic networks performances: from site selection to data integration (EGU2014 SM1.2/GI3.7 session) ; Nr. 40 (2014-12-15), S.11-17 |
| Datensatznummer |
250121316
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| Publikation (Nr.) |
 copernicus.org/adgeo-40-11-2014.pdf |
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| Zusammenfassung |
| The absolute orientation of the horizontal components of ocean bottom or
downhole seismic sensors are generally unknown. Almost all the methods
proposed to overcome this issue are based on the post-processing of the
acquired signals and so the results are strongly dependent on the nature,
quantity and quality of the acquired data. We have carried out several test
to evaluate the ability of retrieve sensor orientation using integrated low
cost MEMS gyroscope. Our tests have shown that the tested MEMS gyroscope
(the model 1044_0–3/3/3 Phidget Spatial Precision High
Resolution) can be used to measure angular displacement and therefore to
retrieve the absolute orientation of the horizontal components of a sensor
that has been subjected to rotation in the horizontal plane. A correct
processing of the acquired signals permit to retrieve, for rotation at
angular rate between 0 and 180° s−1, angular displacement with
error less 2°. |
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