Contact: Miss Yang、Mr cen
    Tel: 750-7771381
    Fax: 750-7771381
    Add: V12, two district, Encheng Industrial Zone, Enping, Guangdong Province, a fan sound (Enping Xinfeng electronics factory)

What is the structure of the IMI?

2018-3-19 17:06:53 浏览:

Taking omnidirectional MIC and vibration film type polar ring connection as an example
1, dustproof net:
Protect the microphone head, prevent dust from falling on the diaphragm, prevent the external objects from piercing the diaphragm, and have a short time of water proofing.
2, shell:
The supporting parts of the whole microphone head and other parts are encapsulated in the housing, which are the grounding points of the microphone, and can also play the role of electromagnetic shielding.
3, vibration film: it is the main part of an acoustic and electric conversion. A tight plastic film of a special fluorine hole is attached to a thin metal ring. The film is coated with a metal ring with a very thin layer of metal. The film can be charged with a charge. It is also a plate with a variable capacitance, and a vibratory plate.
4, gasket:
The distance between the supporting plates is supported by gaps, providing a space for the vibration of the diaphragm, thus changing the electric capacity.
5, back plate:
Another electrode of the capacitor is connected to the G (gate) pole of the FET (field effect transistor).
6, copper ring:
The G (gate) pole is connected to the plate and the FET (field effect transistor) and plays a supporting role.
7, cavity:
Fixed polar plates and polar rings to prevent short circuit of the plate and polar ring from the shell (FET (field effect transistor) S (source), G (gate) very short circuit).
8, PCB components:
Equipped with FET, capacitor and other devices, it also plays a role in fixing other parts.
9, PIN: some of the microphone with PIN (foot) on the PCB, can be welded through the PIN and other PCB, connected to the other front, the back of the structure is also slightly different in the structure.

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  • Miss Yang:13822326867
    QQ:99387176
    E-mail:yifan772@126.com
  • Mr Wu:13426721855
  • Add:V12, two district, Encheng Industrial Zone, Enping, Guangdong Province, a fan sound (Enping Xinfeng electronics factory)
    Tel:750-7771381
    Fax:750-7771381