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A Seismic Vertical Vibrator Driven by Linear Motors
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 74th EAGE Conference and Exhibition incorporating EUROPEC 2012, Jun 2012, cp-293-00473
- ISBN: 978-90-73834-27-9
Abstract
In this paper we present a newly developed vertical seismic vibrator driven by linear motors. We explain the different components the vibrator consists of. We show that the harmonic distortion of the linear-motor vibrator signal is very small. We also show that, without applying a feedback loop on the pilot signal, the weighted-sum ground force signal and its harmonics, is heavily depended on the coupling of the vibrator with the ground.