Role of anti-jamming magnetic ring

Signal frequency, the higher, the more radiation (to buy high quality PC case is to reduce the electromagnetic leakage) and General signal cable is not shielded layer of these signal lines becomes a good antenna, receiving various messy high frequency signals in the environment, and these signals are superimposed on the original transmitted signal, or even alter the transmission signal. In the presence of magnetic loops to allow useful signals well through, and could well inhibit high-frequency interference signals through and the interest is low.

Electronics radiation and leakage of electromagnetic waves is not seriously interfere with other electronic equipment work properly, leading to dysfunction of the equipment, transmission errors, also pose a threat to human health and safety, harm is very large. Thus reducing electromagnetic interference in electronic equipment (EMI is needed to consider the issue.

Absorb the magnetic ring, also known as ferrite ring, known as magnetic ring. Anti-interference components commonly used in electronic circuits, very good inhibitory effect of high frequency noise, the general use of ferrite materials (made of Mn Zn.

Magnetic ring at different frequencies have different impedance characteristics in low frequency impedance is generally small when the signal frequency of elevated magnetic loop impedance rise sharply.

Classification of magnetic field

By analyzing the different currents caused by magnetic fields or currents produced by the different magnetic field magnetic coils can be divided into the following five sections:

Within the magnetic field generated by the core of the current key is similar to a dipole.

Ring current field, this field can be bound in the plasma in the Earth's magnetic dipole led to the current three to eight Earth radii away from the inner Earth (more close to the ground at a high current) about its current flows along the geomagnetic Equator, flows from the Arctic to the clockwise direction (counterclockwise flow of the mainstream within a small)

Circle bound plasma and magnetic field of the Earth magnetic field. Led to the flow of current along the magnetic field. This current is determined by the sudden changes in the magnetic field of magnetic (magnetic top the magnetic field of the solar wind, magnetic in the Earth's magnetic field) caused by amp theorem)

Wake the system. Two magnetic tail beam relative to the magnetic field, magnetic field pointing to the Earth at the North Pole, South Pole magnetic field from Earth away from the magnetotail. This is a layer of dense plasma between the two magnetic fields (about every cubic centimeter of 0.3 to 0.5 ions, ion within the magnetic field density per cubic centimeter between 0.01 and 0.02 only ions) due to changes in magnetic field suddenly here, so for the same ampere principle there is current. The current flows from the day stepped in the sunset. The confluence of currents in the magnetic tail.

Berklin flow field. This field requires a source of energy to keep the heat loss of the ionosphere. This energy source may also be caused by a generator principle suggesting berklin stream at least local area moving relative to the Earth.