Contact Us


Tel: +86-755-86321990

Fax: +86-755-86321961

Add: 2nd Floor, 3rd Building, Baohuacheng Industrial Park, No.45 Huasheng Road, Longhua District, Shenzhen, China.

Service Hotline


Home > KnowledgeContent

Principle of magnetic recording

Recording head gaps within the torus and coils wound around an iron core. Magnetic card is from a certain material substrate and coating evenly on top of the chip card reader base made of particles of magnetic material. Record, the magnetic properties of magnetic surface moving at a certain speed, or the recording head moving at a certain speed, and and or magnetic recording head gaps face contact. Head through the loop once current produces a magnetic field proportional to the gap and magnetic contact with void part of the magnetic body was magnetized. If the recorded signal current changes over time, when magnetic body through a gap on the magnetic card (because the magnetic cards or head is moved), it is magnetized to varying degrees depending on current. After the card was magnetized, leave gap magnetic remanence of the magnetic layer on the left corresponding to the current.

Previous: Card works

Next: Card advantages