source:Industry News release time:2021-12-14 Hits: Popular:Brand bar audio wholesale
1. Magnetic speaker
There is an electromagnet with a movable iron core between the two poles of the permanent magnet. When there is no current in the coil of the electromagnet, the movable iron core is attracted by the two magnetic poles of the permanent magnet and remains stationary in the center; when there is current flow in the coil Obsolete, the movable iron core is magnetized and becomes a bar magnet.
As the direction of the current changes, the polarity of the bar magnet changes accordingly, causing the movable iron core to rotate around the fulcrum, and the vibration of the movable iron core is transmitted from the cantilever to the diaphragm (paper cone) to promote air thermal vibration.
2. Electrostatic speaker
It is a loudspeaker that uses the electrostatic force applied to the plate of the capacitor to work. In terms of its structure, the positive and negative poles face each other to form a capacitor shape, so it is also called a capacitive loudspeaker.
Two thick and hard materials are used as fixed pole plates, which can transmit sound, and the middle pole plate uses a thin and light material as a diaphragm (such as aluminum film). Fix and tighten the periphery of the diaphragm to keep a considerable distance from the fixed pole. Even on the large diaphragm, it will not collide with the fixed pole.
3. Piezo speakers
A speaker that uses the inverse piezoelectric effect of piezoelectric materials to work is called a piezoelectric speaker. The phenomenon in which dielectrics (such as quartz, potassium sodium tartrate and other crystals) are polarized under pressure to cause a potential difference between the two ends of the surface is called the "piezoelectric effect." Its inverse effect, that is, the elastic deformation of the dielectric medium placed in the electric field, is called the "reverse piezoelectric effect" or "electrostriction".
Popular recommendation
AX 88KTV audio sales
2021-07-17PSM 12 POINT SOURCE MONITOR Speaker bar company
2021-07-16Resolution 2 S8KTV audio Vendor
2021-07-17I8SUB Gymnasium audio Vendor
2021-07-26PSM18 POINT SOURCE MONITOR Speaker bar Factory
2021-07-16Minibass 212 Bar bar sound Merchant
2021-06-09F215 MK2 ktv bar sound Factory
2021-07-14F81 Bar speaker company
2021-07-16Resolution 5T Touring KTV audio wholesaler
2021-07-16F118 MK2 Brand bar audio sales
2021-07-14Resolution 5S skeletal Concert sound Vendor
2021-07-16XD18I Bar speakers wholesale
2021-07-26Zunyi FIRST ROOM is the most fun bar audio--Mateng Audio
2022-07-06Conditions of conference sound system design
2021-09-26New ferrite material: high-power, low-weight magnetic circuit design
2021-11-29Dongguan PARTY MASTER Audio Bar Special Audio--Mateng Audio.Anshun Bar Audio price
2022-03-24The coordination of stage sound and stage lighting in the performance.Domestic conference room audio
2022-06-17How to eliminate the current sound of the speaker
2022-08-25What is the technology of stage sound?
2021-09-07The difference between the sound quality of professional audio and ordinary audio.Sound for bars
2022-04-02Sound box divider - Structure of sound box divider
2022-10-12What are the main stage audio equipment and what are they!Marten Audio Vendor
2021-11-01Teach you a few tips for tuning operations
2022-09-14Why do you often "burn the tweeter"?Audio equipment for ktv
2022-04-18