Guangdong abnormity introduces spin magnetic ferrite magnet manufacturer
Guangdong special magnet manufacturer introduces spin magnetic ferrite spin magnetic magnetic materials refers to the two mutually perpendicular constant magnetic field and magnetic field under the action of waves, plane of polarization of electromagnetic wave propagation inside the material while in a certain direction, but the polarization plane will continue to spread around the direction of the phenomenon.
Alloy material also is to belong to spin magnetic, but its low resistivity, eddy current loss is large, deep internal electromagnetic waves can't, so has not been used for the time being.
So, special-shaped magnet has become its unique field.
Is generally applied to spin magnetic materials and microwave waveguide/transmission lines become microwave devices.
Used in radar, communication, navigation, etc.
Knowledge, special-shaped magnet card magnetic strip is introduced
Relations with magnetic material credit card, bank card magnetic stripe contain the personal account information, such as consumption record important private information.
Magnetic stripe has three tracks, each of the track width to 2.
The banking industry to use standard is ISO/IEC 7811, Track Track application allocation is usually according to the requirements of the special use and custom, such as the banking system, security system, entrance guard control system, identity recognition system, driver's license management system, etc. , on the card on the card on the 3 Track put forward the application of different format requirements put forward the application of different format requirements.
Specific content is as follows: the first track is stone recording density of 210 bits (
, can record 79 read-only characters, each character length is 6 bit plus a parity school verification code.
The second track recording density is 75 bits, can record 40 characters, each character length of four bits of a parity school verification code.
Article 3 track recording density is 210 bits, can record 107 characters, each character length of four bits of a parity school verification code.
The first track contains information has two formats: for issuing exclusive use the format of the WWW.
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