Hello, i amId cardAndBank cardPut it together, yesDemagneticYeah? A lot of people worry for over a decade
Every day, it brings you up to date, and everything gets dry. If you think it's useful for your life, you'll have to pay attention
Many went out and used to stick identity cards and bank cards in their wallets. The family's elders have repeatedly warned that it is important not to put a single piece on it, that the card is magnetic, that the bank card is so easy to remove, that it will not be read and that it will be too late。
For more than a decade, this claim has spread and many people have been careful to keep separate cards. But tell the truth today: identity cards and bank cards don't go away at all. You've been worried for years。
I. Understand: what is the rationale for “magnetic” bank cards
The old bank card had a black magnetic bar on its back, reading and writing data on magnetic information in it。
What really causes magnetic strips to demagnetize is a strong magnetic field: magnets, refrigerators, sound, televisions, mobile phone speakers, these things with a permanent magnet. The information on the magnetic strip will be destroyed for a long period of time, which is what you call a demagnetic。
And our second generation of ids, which are chip+wires, are radio-frequency ic cards, are not magnetic in themselves, are not magnets。
The identity card does not have the capability to release the magnetic field outward, and the two cards are attached together and do not create interference between the magnetic fields. The card and the bank card are so close to each other that they do not remove the magnetic strip of the card。
A simple sentence: i. D. Has no magnetic field and can't demagnete a bank card。
Then why can't anyone read the id card together
Many of the reasons for the card's failure are “magnetic”:
Physical wear and tear
Cards are folded together, frictions are frictioned, and bank card magnets, identity card chips are scraped by hard matter. There's a lot of magnetic stripes and the reader failed to read it. It's scratching, not demagnetic。
Card bends, squeezes damaged
Wallet squeeze, seat pressure, card bends, internal chip or magnetic bar fractures。
It's not about the magnetic field, it's about the physical exterior。
Iii. Distinguishing between two cards. Don't confuse
1. Magnetic bank cards: black long bars on the back, strong magnets, identity cards。
Chip bank card (now most bank card): is dominated by chips and magnetic strips are only auxiliary. Even if the magnetic strip is slightly damaged, the chip is still normally readable and is less likely to fail。
Second-generation identity card: pure chip card, non-magnetic。
That's what really broke the bank card
Stay away: magnets of all kinds, magnet-sucking cell phone racks, refrigerator stickers, sound horns。
Try not to keep your cell phones tight for the long term: the internal speaker of the cell phone has magnets, the card is attached for the long term, and the old card has a magnetic risk。
There is no need to be afraid: identity cards, membership cards, bus cards, regular cards are placed between each other, and they are not magnetic。
Additional information: ic cards such as bus cards, door-ban cards, together with identity cards, are not usually removed. In a few scenarios, two radio frequency cards are folded, each of them is swiped, unreadable, separated and normal, and the cards are not permanently damaged。
V. 4 common error areas
Misdirection 1: the identity card is magnetic and removes the bank card。
Wrong, second-generation id is a chip card, no magnetic field, no anti-magnetic capability。
Mistake 2: put the cards together, they'll get rid of it。
There is no problem with simply stacking, fearing hard matter scratching, bending, strong magnets。
Miss 3: i can't get the card out. I'm sure it's demagnetic。
Most cases are magnetic strips, card bends, not magnetization。
Zone 4: ic cards (identity cards, door-barrel cards) are easily demagnetic。
The ic chip card is not afraid of the normal magnetic field and is hardly “magnetic” and the damage is mostly physical。
A practical little trick to save a card
1. Put a card in the wallet with as many separate bags as possible to reduce the direct friction of the card with each other
2. Detachment from magnets, magnetic suction racks, high power acoustics
3. Do not put cards in the back of their pants, and sit down and break them easily
4. Keep the face of the card clean and do not scrape magnetic strips and chips with sharp objects
5. If the bank card cannot be brushed, the magnetic strip can be wiped and the bank can not be changed。
At the end
Summary: the identity card and the bank card are put together and are not magnetic. The fear that's been bothering you for over a decade, it's actually..RumorsI don't know。
Most of the card damage was caused by scratching, crushing and bending, not by magnetization。
Of course, if you're trying to protect the card, it's okay to keep it alone
This is lifeCopeSharing, most of the bank cards are now chip cards, which can be stored properly to extend the card's useful life。
