Does mobile phones have an effect on magnetic cards? Does the degaussing of the phone card have any

Mobile phones contain a lot of fine little metal parts, some of which are also magnetic, and when placed together with the magnetic card, they will affect each other. If the parts of the phone are magnetized, it will affect the normal function of the phone. The magnetic card is put together with the mobile phone, and it may also be demagnetized, affecting the function of the magnetic card.

Can't put it together,It's all a problem encountered by the coincidence of merchants and some users,Bumping the card is the use of magnetic induction,And the mobile phone is using dual frequency to work,That is900m and 1800m,Between the two is a magnetic energy,A is an electrical signal。 It's not linked at all, it's no problem to put it together, but when the mobile phone is in use, especially when playing **, there will be a large radiation wave, if you use the card and the mobile phone at the same time, you may worry about each other, but this probability is very small.

Will my transit card and phone be affected when they are together?

- Object of curiosity: transit card.

Curious question: Will the transportation card and mobile phone be put together to affect the use?

Ms. Wang sent an email to the headquarters, asking a curious question that had been bothering her for a long time: "If the transportation card is used together with the mobile phone, will it affect the performance of the transportation card?" ”

Site surveys. The reporter asked several passengers who used transportation cards on the bus, and half of them said "it will affect" and "will not affect". The reporter asked the reason in detail, and some passengers thought that the impact was because the magnetic field of the mobile phone was too large to affect the magnetism of the transportation card, and the reason given by the passengers who thought that it would not affect was very simple:

I put them in the same bag every day, and nothing happens at all! ”

Curious about the results. The reporter called the urban construction ** to consult this problem, and got the technical staff professional: Normally, the impact of mobile phones on traffic cards is not great.

It is inaccurate to say that the traffic card is "magnetized" by the mobile phone, and the traffic card is a chip that uses electromagnetic induction to exchange data with the card reader, and it will not be affected when put together with the mobile phone.

If the transportation card fails, the main reason is that the chip life has reached the end of its life or it is caused by improper storage. The lifespan of the chip is generally 5 years, but because the transportation card can be resold, even the newly purchased card may be used for a long time, so it will suddenly fail if it is properly stored. The chip cannot extend the life, but as long as the transportation card is not broken, it can be replaced with a new card for free.

Some passengers often mix the transportation card with other cards, which is easy to wear out the transportation card and affect the sensitivity of the card. In addition, the technician also reminded that the card should avoid bending, scribbling and impact, and should not be placed close to hot, magnetic objects. But don't worry about your travel card being magnetized by your phone.

It can be connected normally**, but when dialing, it prompts that outdialing** is limited by fixed dialing.

There are two general reasons for this:

1. The mobile phone is in arrears.

In this case, it is recommended to recharge the phone bill, which can be recharged through **.

2. The mobile phone card has been demagnetized.

The only solution is to "reissue a new mobile phone card, change the card without changing the number" for free, now there is no charge, after the reissue, by the way, in the main hall let the salesman import the address book on the old card into the new card.

Placing the magnetic card behind the phone will have an effect on the phone. The reason is that the magnetic sensing element in the mobile phone can be affected by the magnetic card, which in turn affects the mobile phone's compass and accelerometer, which are usually used to determine the direction and sense movement. In addition, if the information stored in the magnetic card involves sensitive information such as bank cards or credit cards, it is recommended not to keep it with your mobile phone in order to protect your property.

The magnetic card is made of metal, and it has strong magnetism due to the code tremor, which may affect the magnetic sensing element of the mobile phone. These elements detect the phone's position and orientation for use in navigation and compass applications. Placing the magnetic card in the vicinity of the magnetic bump base smile model element will cause the phone to read inaccurately, drift or misjudge.

In addition, if the information stored in the magnetic card involves sensitive information such as bank cards or credit cards, if it is sensed by the radio waves of the mobile phone, it may send a signal and be exploited by malware. In fact, it's not advisable to keep sensitive information and your phone together, let alone keep cards like bank and credit cards in the same place as your phone. Therefore, we recommend storing the magnetic card separately from the phone to enhance information security.

In conclusion, placing a magnetic card behind the phone can have a negative impact on the phone's sensors, and if the magnetic card is stored with sensitive information such as bank cards or credit cards, it should also be stored separately for security purposes. <>

The phone does not demagnetize the card, because the electromagnetic waves emitted by the phone do not cause the card to demagnetize. The magnetic parts in the phone are also not strong enough to demagnetize the card.

Moreover, you may come into contact with various cards in daily life, such as bus cards, second-generation ID cards, canteen meal cards, community access control cards, IC** cards, bank cards, etc. Only magnetic cards with a magnetic stripe on the back are likely to be demagnetized.

Cards without magnetic stripe, such as public sparkle cards, canteen meal cards, community access control cards and second-generation ID cards are contactless smart cards that use radio frequency identification technology, while IC** cards are contact smart cards. The information in these smart cards is stored on semiconductor chips, and it is impossible to be "demagnetized" without the use of magnetic recording of Jichang Liquid.