Helmholtz-Coils are especially designed to generate precisely defined magnetic fields from DC to the upper end of the audio frequency range and beyond. The generated fields are in a strongly linear relation to the coil current. The field- strength can be calculated exactly by analytical (or numerical) methods, based on the coils' geometry, the number of turns and the coil current.
Therefore Helmholtz-Coils are ideally suited for the calibration of magnetic field probes or sensors. Typical applications are magnetic immunity testing according to automotive standards or MIL-461F.
When generating magnetic fields with Helmholtz coils the coil current is directly proportional to the magnetic field strength.
In this research, a Helmholtz coil is designed and developed to create a uniform magnetic field. This coil is mainly designed to measure the different parameters of the coils. The coil is designed in such a way that it reduces electromagnetic compatibility test time which is a representative of the actual electromagnetic environment of energy system. These special type of capacitor banks have an important role in improving the power losses and to create uniform magnetic field in the coil. Experimental value of the uniform magnetic field strength in various directions are presented. Specifically, this research presents new experimental analysis of designing a Helmholtz coil of an axial 4-coil system based on Helmholtz coils.
Helmholtz coils are a devices that can provide a very homogeneous magnetic field. Although the principle is very old, it is still applied in state-of-the-art experiments. In this problem you will learn how the special characteristics of such coils are achieved.