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An overview of the detailed information on the magnetic loss mechanism of the absorption principle of the insulation film

Author:admin   AddTime:2021-02-02

The insulation plate is a kind of flexible flaky absorbent film made of absorbent material, the magnetic insulation sheet can solve the metal by the radiation of the RF signal and produce skin effect, produce vortex, weaken the RF signal, interfere with the acceptance strength of the signal to the RF reader, resulting in the failure of the card reading.

The role of the magnetic sheet:
1, between the metal and the coil to play a magnetic isolation role
2, to prevent the receiving end of the metal conductor to the magnetic field attenuation
3, enhance the magnetic field strength of the sending and receiving coils.

The suction principle of the absorbent material insulation sheet

The absorbent material insulation sheet is not only a magnetic medium with magnetic absorption, but also a dielectric with electrical absorption. In the low frequency band, the absorbent material insulation film mainly relies on the loss of hysteresis effect, vortex effect and magnetic after effect to cause the loss of ferronic oxygen to electromagnetic waves. In the high frequency band, it mainly comes from natural resonance loss, wall resonance loss and dielectural loss.


tage:Wireless magnetic sheet   Shielding material

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