Do you ever get used to it: before you go outId cardI'm afraid of two pieces of "smoking."Demagnetic"yeah? There are also people who are over-checked with documents and who fear being "unmagnetic."。
The fear is widespread, but the answer is that second generation ids are not "magnetic" at all, because there is no magnetic strip in it。
The truthThere's no "magnetic" in the id
Our usual second-generation residential identity card, which is embedded in a non-contact ic smart chip (radio frequency chip) that reads information by radio waves, does not require "magnetic" at all。
It works in very different ways from old-fashioned bank cards. Magnetic cards record information on a magnetic signal, which is possible near a strong magnetic field; and identity cards use chips without magnetic strips, which naturally does not exist。
So, putting ids and cell phones in the same pocket, going through the security device, near the soundbox or the normal magnet -- none of this makes it "magnetic." the ministry of public security and the local public security authorities have done so many times beforeA rumourI don't know。
Then why can't it come out sometimes
If you can't demagnetize, why do railway stations and police stations sometimes get "unwritten"? The failure to read cards is not usually a problem of magnetism, but the more common reasons are:
- physical bending or pressure: chips and internal wires are thin, hard folding, sitting pressure, and long-term pressure can break the line
- high-temperature damage: prolonged tan, close to the source of the fire or the heating, roasted in the car, high-temperature damage to the chip
- obsolete scratches: severe scratching and oil contamination of the chip area
- card-reading equipment problem: calibration itself, environmental disturbance, and error in reading
A few things to be really careful
If you want to keep your id card running, remember that:
No bending, no pressure — this is the number one cause of the chip
Stay away from the high temperature - not by the heating, not in the car, not near the source of the fire
Do not mix with key coins — hard matter frictions can easily scratch a chip face
Scraps — simple physical protection against scratching pressure
Not recommended for plastic seals - post-container machines are more difficult to read, heat-distorting
What if it's broken
If the chip is indeed damaged and cannot be read over and over again, it is sufficient to bring the relevant documentation to the nearest police station or to replace it in the public hall. The cost of the work is usually $40, which can be completed in many places in the same day or within a few days。
One word
"i. D. Dismagnetic" is a classic old ageRumorsI don't know. It's safe with the cell phone, through security checks, and it really hurts with bends and heat. I'm going to transfer this to my seniors, so we don't have to worry about "smoking."。
