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FAQ

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Shielding is the isolation of metal between two space regions to control the induction and radiation of an electric field, magnetic field and electromagnetic wave from one region to another. Specifically, the interference source is used will shield components, circuit and assembly, cable or whole system surrounded by preventing electromagnetic interference shielding body outward diffusion; receiving circuit, device or system surrounded, to prevent them from the influence of external electromagnetic field. Because of shielding from external wires, cables, components, circuits or systems such as electromagnetic interference and internal electromagnetic wave plays an energy absorption (eddy current loss), reflection energy (reflection of electromagnetic waves on the interface of the shield and energy (on) offset by electromagnetic induction electromagnetic field in reverse, shielding layer can be offset the effect of electromagnetic wave interference), so the shield has the function of reducing interference. (1) when the frequency of electromagnetic interference is higher, the eddy current generated by the low resistivity metal material is used to counteract the electromagnetic wave, so as to achieve the shielding effect. (2) when the interference of electromagnetic wave in low frequency, using high permeability material, so that the magnetic shielding limit in the internal space to prevent the spread of the shield. (3) in some cases, if the high frequency and low frequency electromagnetic fields are required to have good shielding effect, different metal materials are often used to form a multi-layer shielding body.

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But also to prevent people close to the effect of inhalation injury.For air conditioning, motor, exhaust fan, radiator, fan, generator, diesel engine and other parts of the heat, exhaust and vent protection.

I put the data line opened, want to extend the data line charging at the bedside, data line there is a layer of metal mesh, the thick black line is connected with the data line and the data line, I use ordinary enameled wire extension, only extended red and black, can be a normal charge, but the layer of metal mesh is used for what? For the field? I extend the data line feasible? Long-term use will not be on the screen of the mobile phone battery or what impact, please explain the ropes,

In short, the anti interference, but also more solid. Generally do not have any effect, if you are in the vicinity of a strong magnetic field may be a bit of use, the general data line is the transmission of electrical signals, their ability to resist interference is relatively strong, unlike television antennas, such as. Oh, I understand. You're curious

Is there a certain relationship between the diameter and the number?At this time the tension is probably how much?

Common: 10, 20, 40, 60, 80, 100, 120, 150, 180, 200, 250, 300, 320, 400The maximum number of 1250, but I have not seen, general dry powder, 300 was more difficult to screen it.

If not, microwave ovens, mobile phones are how to shield the electromagnetic wave of the phone?

Of course, the conductive metal can produce electromagnetic wave reflection, absorption, and offset, and so on, so as to play a role in reducing electromagnetic radiationOf course, not just any metal can play a shielding:

Microwave oven outer glass broke (inside the layer of metal mesh with the glass, because no matter) repair shop glass replacement, but I can find a suitable size of stainless steel plate, can replace it, if there is an adverse impact? Or do you have other solutions? Thank you1, the microwave oven door (Matsushita GM331H) has 2 layers of glass, tempered glass dust in the outer layer with metal net, the glass intact.2, tempered glass can not be cut, are to be customized to the glass factory, a small glass of people do not take orders and expensive.3, the inner layer with metal screen glass has been shielding microwave? Is the outer glass just a decorative effect?

I suggest you contact the manufacturers to send you a model of the furnace door, insurance is safe. Microwave oven this thing must not be used. Prone to unexpected problems.

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Precious metals investment, I only know that the next few years will be the development of the silver market.

What is the function of a long piece of black metal mesh after the front windshield above the rearview mirror?

Is it in the upper right corner of the car?. 4S shop professional technicians, 10 minutes to solve. ]