The recorder is a machine that records the sound to replacement. It uses hard magnetic materials as a carrier, and uses the remaining magnetic characteristics of magnetic materials to record the sound signal on the carrier, and then replay.So what is the principle of recorder?What is the price of a recorder?Lets take a look at it together.
Publishing machine principle
1. The market quotation of Degen DE1125 digital recorder is 319 yuan;
2. The market quotation of Panda 6512 portable transmitter is 110 yuan;
4. Panda CD-850 multifunctional recorders market quotation is 499 yuan;
5. The market quotation of TECSUN ICR-100 broadcast recorder is 125 yuan;
7. Panda F-236 Language Reproduction of the Board of Language Reading Machine is 155 yuan;
8. The market quotation of Degen DE1129 frequency -regulating stereo recorder is 299 yuan;
9. The market quotation of NEWSMY M100 Stadium Black Re -Re -Re -Re -Re -Re -reader is 399 yuan;
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Introduction to recorder
The tape recorder is mainly composed of the microphone, tape, recording magnetic head, amplifier circuit, speaker, transmission mechanism and other parts.During the recording, the sound causes the inductive current that changes with the sound. After the audio current is amplified by amplifying the circuit, enter the coil of the recording magnetic head, and generates a magnetic field with audio current changes at the gap of the magnetic head.
The tape moves closely with the gap of the head, and the magnetic powder layer on the tape is magnetized, and the magnetic signal of the sound is recorded on the tape.The sound release is the inverse process of the recording. When the sound is released, the tape is close to the gap of the sound of the sound of the sound of the sound of the sound. The magnetic field that changes on the tape causes the sound of the sound head coil to generate an inductive current.
Therefore, current audio is generated in the coil. After the current amplified circuit is enlarged, it is sent to the speaker, and the speaker restore the audio current into sound.In the recorder, the two functions of recording and putting are completed with a fool head. During the recording, the magnetic head is connected to the little stupid bear. The magnetic head is connected to the speaker during pitch. It can be seen that the division of labor between the two is quite clear.

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