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Retrieval of Ocean Bottom and Downhole Seismic Sensors Orientation Using Integrated Mems Gyroscope and Direct Rotation Measurements : Volume 40, Issue 40 (15/12/2014)

By D'Alessandro, A.

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Book Id: WPLBN0003978231
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: Retrieval of Ocean Bottom and Downhole Seismic Sensors Orientation Using Integrated Mems Gyroscope and Direct Rotation Measurements : Volume 40, Issue 40 (15/12/2014)  
Author: D'Alessandro, A.
Volume: Vol. 40, Issue 40
Language: English
Subject: Science, Advances, Geosciences
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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D'alessandro, A., & D'anna, G. (2014). Retrieval of Ocean Bottom and Downhole Seismic Sensors Orientation Using Integrated Mems Gyroscope and Direct Rotation Measurements : Volume 40, Issue 40 (15/12/2014). Retrieved from

Description: Istituto Nazionale di Geofisica e Vulcanologia, Centro Nazionale Terremoti, Italy. 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°.

Retrieval of Ocean Bottom and Downhole Seismic sensors orientation using integrated MEMS gyroscope and direct rotation measurements

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