In KGNTS create a system that normalizes the level of the magnetic field on the

Courts

The experts of the physical fields of marine facilities and ocean Federal State Unitary Enterprise "State Scientific Center Krylovskiy" completed the second phase of development work "Noise", made under the Federal Program "Development of civil marine engineering."
This phase included the development of technical projects of typical designs of offset low-frequency electromagnetic fields and the normalization constant magnetic field in the areas of ships and offshore facilities to normalized maximum permissible levels specified sanitary rules and regulations.

  • In Krylovskaya SSC create a system that normalizes the level of the magnetic field on ships
  • In Krylovskaya SSC create a system that normalizes the level of the magnetic field on ships

 The most intense sources of low-frequency electromagnetic field on the courts are the elements of the ship’s electrical cables, power boards and powerful distribution and control devices. The electromagnetic fields generated by such devices is determined by the amplitude of the currents flowing in the electric circuits, and the currents consumed by the load are determined, which varies during operation of the vessel.
Effective way to reduce low-frequency electromagnetic field is automatically compensated. Within the scope of the model structure were developed compensator which can automatically set the current in the compensating circuit in the range of 0.1 A to 6A at a voltage of 30V. The compensator includes: measuring sensor, a control unit and amplifier circuit of compensating circuit.
Experimental studies of the layout of the compensation system confirmed the promise of its application. At present, produced a prototype of the compensator.
Experts 7th Branch Krylovskogo SSC noted that the relevance of the normalization constant magnetic field in the inner rooms of ships and offshore structures due to reduced levels of natural magnetic field of the Earth, which has a negative impact on the performance of the crew and can negatively affect their health. The degree of reduction of the constant magnetic field is determined by the location of the cabins in the volume of the vessel, hull construction material of the hull, as well as the location of the vessel.
For the normalization of the static magnetic field in the spaces of the vessel to the values permitted by the applicable regulations, developed a system that generates a sufficient amount of cabins homogeneous field, similar in magnitude to the Earth’s magnetic field, with the use of loops around the perimeter of the "ceiling" and "floor . " For power circuits designed constant current source with low ripple and discrete mode of installation. Control the level of the magnetic field carried by the lamp field.
Normalizer provides installation of a magnetic field with induction levels of 3 mT to 100 mT at a current of up to 4A and voltages up to 32V. Development testing of the system of normalization confirmed the technical feasibility of. At present, produced a prototype of the system.

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