Method and device for controlling a multi electrode sweep
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United States of America Patent
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Jun 28, 1994
Grant Date -
N/A
app pub date -
Jul 21, 1992
filing date -
Jan 22, 1990
priority date (Note) -
Expired
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Abstract
The invention relates to a method and a device for sweeping marine mines having a magnetic sensor by at least three electrodes (10, 11, 13) spaced apart and tractored by a vessel (12) and behind each other, the electrodes being provided with electric current from the vessel (12) for generating a magnetic field in the water surrounding the electrodes (10, 11, 13), each of the electrodes (10, 11, 13) separately being provided with electric current of individually adjustable strength. The invention is characterized by varying in time the current strength of the current fed to the electrodes between positive and negative limits with intermediate zero passages to separate the time for zero passage of the current to at least one of the electrodes (10, 11, 13) from the time for zero passage of the current to the rest of the electrodes (10, 11, 13).
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