METHOD AND SYSTEM FOR GENERATING LOW-FREQUENCY SEISMIC SIGNALS WITH A FLOW-MODULATED SOURCE
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Mar 27, 2015
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Apr 9, 2014
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Abstract
A low-frequency source element is configured to generate seismic waves in water. The low-frequency source element includes includes a hydraulic reservoir configured to hold a given fluid volume; a compliant chamber configured to hold a given gas volume and to accommodate volume changes of the given fluid volume; a rotational kinetic energy actuator configured to impart rotational kinetic energy to the fluid volume; and a flow modulator device configured to transform part of the rotational kinetic energy of the fluid volume into translational energy to generate an acoustic signal.
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