Today, electric pod propulsion is used for many ships, cruise liners and Navy vessels. This propulsion uses high currents in extremely low frequencies (ELFE); currents flow through electrical network, equipment and pods. These alternative currents could generate important underwater electromagnetic field. GESMA has to quantity the level of this field and its impact on the signature of this kind of ship. Then, GESMA carried out electromagnetic measurements using a multisensors underwater and autonomous facility named AMI. It was placed on the route of a 20 MW pod ship, at one hundred meters depth from the surface. Especially, AMI observed an alternative radiated electric field.
Signature electromagnetique sous-marine d'un paquebot de 20 MW a pods. Le champ electrique alternatif
Elektromagnetische Unterwassersignatur eines Passagierschiffs mit 20 MW-Gondelantrieb: elektrisches Wechselfeld
2006
7 Seiten, 17 Bilder, 3 Tabellen, 4 Quellen
Article (Journal)
French
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