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Aluminium Foil Raw Material Jumbo Roll
We can see that mid-to-high-end data cables usually consist of the following parts: plastic shell-woven mesh-aluminum foil-copper core. The innermost conductor core (copper core) is wrapped with colored insulators to transmit data signals and current, and the outer rubber shell is used to protect the wires; what is the role of the woven mesh and aluminum foil layer in the middle? An important function of the data line is to transmit data signals. But all kinds of messy interference information may appear around us when we use it. Let's think about it if these interference signals enter the inner conductor of the data line and are superimposed on the originally transmitted signal, is it possible to interfere with or change the original transmitted signal, thereby causing useful signal loss or problems? And these woven nets and aluminum foil layers protect and shield the data information we want to transmit. Of course, not all data lines have two layers of shielding, some have multiple layers of shielding, some have only one layer, or even none. Shielding is the separation of metal between two different areas in space to control the induction and radiation of electric fields, magnetic fields and electromagnetic waves from one area to another. Specifically, it is to surround the conductor core with a shield to prevent them from being affected by the external electromagnetic field/interference signal, and at the same time prevent the interference electromagnetic field/signal in the line from spreading outward. The shielding layer of the data cable is mainly made of copper, aluminum and other non-magnetic materials, generally braided copper mesh (aluminum-magnesium woven mesh) or copper pad (aluminum pad, etc.), their thickness is very thin, much smaller than the frequency of use of metal materials The skin depth. One point that needs to be explained is that one end of it must be connected to the signal ground of the circuit, because the effect of the shielding The layer is not mainly caused by the reflection and absorption of the electric and magnetic fields of the metal itself, but by the grounding of the shielding layer.
Aluminium Foil Thickness Temper 8011 For Medicine High quality drugs are very sensitive and require high-quality care to ensure effective use
