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
F121Car stereo wholesaler
2021-07-14Resolution 4S Skeletal Bar use audio Vendor
2021-07-16XD18C Big sound bar Merchant
2021-07-26F88 Car stereo Merchant
2021-07-16F81 Bar speaker company
2021-07-16D80DSP Large bar sound Vendor
2021-07-26F55 Bar speaker company
2021-07-16A6 ktv bar sound wholesale
2021-07-26SB 210A Bar brand audio Vendor
2021-06-08Resolution 18 Bar speaker Vendor
2021-07-17MB210 Low Profile Bar audio set Merchant
2021-07-14PSM18 POINT SOURCE MONITOR Speaker bar Factory
2021-07-16What should I pay attention to when choosing KTV audio equipment.Hotel conference room audio equipme
2023-04-13Do you know what factors affect the sound quality of a professional audio system?
2022-03-16The use of professional audio is taboo, these problems can be big or small!
2022-05-17Teach you how to tune and maintain the KTV sound system
2022-04-15Dongguan PARTY MASTER bar audio provided by Mateng Audio
2022-11-30Improperly tuned crossovers and balancers.KTV audio manufacture
2022-07-07Chongqing DNA high-end bar special audio---Mateng Audio,Conference room speaker price
2022-06-01About the application of sound exciter.Car stereo Vendor
2021-12-03How to use audio equipment safely
2022-08-16How to judge the quality of line array speakers?Hangzhou Bar Audio Vendor
2021-11-22Installation and connection method of bar lighting and sound equipment
2021-10-09How to do balanced wiring of professional audio!Sound bar Vendor
2021-10-20