1. For electronic computers and communication equipment: as the heat dissipation material of cpu, it can greatly reduce the working temperature and prolong the service life.
2. Applications as permanent magnets include: manufacturing magnetic resonance coils (or magnetic disks), such as magnetic disk drives, making various tape recorders, making ring polaron for optical fiber, making tweeters for subminiature speakers, making magnetic drums in tape recorders, etc.
3、 The applications used as electro-acoustic transducer include: replacing steel reed with soft magnetic core in the receiver of the machine to reduce the volume and weight; replacing paper basin with soft magnetic core in the muffler of the television to reduce the noise; replacing traditional cylindrical loudspeaker with soft electromagnet in the audio equipment to increase the effective volume; using soft magnetic thin film transistor (tft) on the computer display It is made into a large screen color display panel, a reversing radar device on the car, a gyroscope system on the aircraft, and a switch on the electric shaver to control the rotation of the motor.
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