Driving means for acoustic marine vibrator
AssigneePGS Geophysical AS
InventorStig Rune Lennart Tenghamn
Life of this patent
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Abstract
A marine vibrator that in a particular embodiment includes a substantially elliptically shaped outer shell, a driver having a first and second end, at least one outer spring connected between the first end and the second end of the driver, and at least one inner spring connected between the first end and the second end of the driver. One or more masses are attached to the inner spring. At least one transmission element connects the outer spring and the outer shell. The outer and inner springs and the masses attached to the inner spring are selected to generate a first resonance frequency and a second resonance within the frequency range between 1 Hz and 300 Hz.
Claims6
A marine seismic vibrator comprising:
- a substantially elliptically shaped outer shell;
- a driver having a first and second end;
- at least one outer spring connected between the first end and the second end of said driver;
- at least one inner spring connected between the first end and the second end of said driver, said inner spring having one or more masses attached thereto;
- at least one transmission element connecting the outer spring with said outer shell;
- and
- wherein said springs and said masses are selected to generate a first resonance frequency and a second resonance frequency within a frequency range between 1 Hz and 300 Hz.
Dependencies are inferred from the claim text.