The membrane base forms a magnetic layer of a few μm or zero μm. It's a decision
Mechanical performance of the tape, the magnetosphere determines the electromagnetic performance of the tape。
There are two ways to form the magnetosphere: one is a magnetic piece that will be needle-shaped
Particle (i. E., magnetic powder) mixed with adhesives, etc., is evenly coated on the straps
This tape is called a coating tape; the other is a direct magnetic alloy. Pink
The end is evaporated on the base by vacuum plating membrane, known as evaporated tape。
The material in the magnetosphere consists mainly of cobalt seepage iron oxide and chromium dioxide (cro2)
Three types of alloy powder consisting mainly of iron, cobalt and nickel. The first two
The resulting tape is called the oxide belt, which is called the metal belt. The oxygen belt
The coating, with a minimum record wavelength of about 0. 6 m. Metal with coating
Type (mp) and vapour (me). Shortest coated metal belt magnetosphere remember
Recording can be as long as 0. 5 m. The minimum recorded wavelength of the evaporated metal belt is less than
0. 5m。
♪ the principles of recording
1 recording process
Record signal flow through
Magnetic coil
Close up along the ring magnet core
It's open. It's because of the gap
Magnetic resistance. Magnetic lines sewn through
Gap spill. When tape is magnetic
When the magnetic head is sewn up
Spilling magnetic lines are being sidelined to the low-magnetic magnetosphere, making the magnetic body magnetic
Ditto. If the tape moves at a certain speed against the magnetic head, it's magnetic
When the magnets leave the gap, they leave their direction and size and their coil. Electricity
The direction and size of the flow) corresponds to the remaining magnet. The remaining magnetic tracks on the tape
Abbreviations are magnetic。
Note:
(1) tape from record head
When you pass before the crack
The magnetic field that goes to first is vertically
Tape surface, then parallel
On the surface of the tape, and finally..
Vertically on the tape surface, however
The remaining magnets are mainly water
Horizontal magnetic residuals from the flat magnetic field。
That means the tape recorder is using the level of the magnetic head working in the gap
Magnetic field, where the magnetic layer of the tape forms the remaining magnets parallel to the surface direction of the tape
