1、 Definition of microphone:
Microphone is an acoustic electrical converter (also known as transducer or sensor), which is the opposite of the horn (electrical to acoustic). It is the two terminals of sound equipment. The microphone is the input and the speaker is the output.
Microphone also known as microphone, microphone, microphone, microphone, microphone, etc
2、 Classification of microphone: 1
Carbon pellet type
Moving coil
Electret type (mainly electret type)
Piezoelectric type
Silicon dioxide, etc
2. According to the size, electrets can be divided into several types
Φ 9.7 series products Φ 8 series products Φ 6 series products
Φ 4.5 series products Φ 4 series products
There are different heights in each series
3. From the directivity of microphone, it can be divided into omni-directional, unidirectional and bidirectional (also known as noise elimination type)
4. In terms of polarization mode, diaphragm type, back pole type and front pole type
From the structure, it can be divided into grid pole welding type, grid pole crimping type, pole ring connection type and so on
5. From the external connection mode
Common solder joint type: L type
Pin pin type: P type
Concentric circle type: S type