Polyamp AB

Electric Potential Sensors

Underwater Electric Potential sensors

Underwater Electric Potential sensors UEP are produced by cathodic currents in the ship or submarine hull and also from propeller or other dissimilar metallic materials mounted on the hull and in contact with seawater. The UEP field structure is similar to the magnetic as it creates dipoles. The ELFE (Extra Low Frequency Electromagnetics) signal of electric field can detect a vessel at distances of nautical miles even in environments that is very difficult for acoustic methods. The Polyamp Carbon Fibre (CF) sensor is very robust and does not need any special care at shore or during deployment and even so, it is not the sensor but the amplifier (noise level) that decides the sensitivity of a measuring system.