Speaker magnetic fluid

Industry consensus: magnetic fluid can reduce the voice coil operating temperature, improve the ability to withstand the ability to improve the frequency response, help the voice coil to maintain the center position, reduce the distortion and power compression effect, improve the dynamic performance, and extend the service life of the speakers.

ferrotec Magnetic fluids: the study and production experience in the past thirty years, so that all the indicators are far better than other magnetic fluids, in particular, it has a higher thermal stability and lower evaporation rate, excellent colloidal stability, and thus make the speaker more reliable and stable, longer service life. And brand-name magnetic fluid of the poor performance of high temperature, viscosity and then will increase rapidly, which will affect the parameters, work performance and service life. Unfortunately, manufacturers tend to have no opportunity to find this, because this change is often used in the user after a period of time to be aware of. Only by comparing the aging test, can we get the confirmed.

1. What is magnetic fluid

Magnetic fluid (also known as ferromagnetic or magnetic fluid) is a kind of liquid which is brown and black. It is composed of a diameter of about 10 nm.

2. A brief history of magnetic fluid

Magnetic fluid comes with a mysterious color, it was classified as a high degree of confidentiality. NASA (NASA) in the implementation of the space program in order to solve the problem of liquid rocket fuel flow and accurate control in the weightlessness, the study of the development of magnetic fluid technology. In the solid fuel rocket technology is mature and replace the liquid rocket, the magnetic fluid technology is the lifting of the ban. Several scientists involved in the project to obtain a special permit and in 1968 set up a magnetic liquid company, continue to develop the technology of magnetic fluid. After thirty years of development, today's magnetic fluid has been widely used in speaker manufacturing, as well as stepping motors, large power transformers, audio and video tape manufacturing, computer hard disk and floppy disk manufacturing, etc..

3. Efficacy of magnetic fluid

Adding a certain amount of magnetic fluid in the gap formed by the speaker and in t WASER will --

Significantly improve the speaker to withstand the power, to extend the speaker life. In general, the power of the speaker is subject to the heat resistance of the voice coil. Greater power, generated more heat, resulting in the voice coil temperature increase rapidly, when reaching the tolerance limits of the voice coil material, voice coil will be burned. And the thermal conductivity of magnetic fluid is far larger than that of air, it can effectively heat by T, China division and a washstand emitted to the air, so as to prevent voice coil burned, delaying the aging of the voice coil material and binder, thereby prolonging the service life of the loudspeaker.

To improve the frequency response, reduce distortion. Magnetic fluids have a certain damping, speaker in the lowest resonance frequency (F0) near the frequency response curve will peak, for amplitude of vibration membrane caused by excessive distortion. This is a defect that the speaker wants to overcome. Damping effect of magnetic fluid using the proper viscosity of the voice coil motion, can make the loudspeaker at F0 frequency response curve smoothing. So as to improve the frequency response characteristic, it is advantageous to simplify the design of frequency divider circuit. The magnetic fluid has a central position, which can prevent the phenomenon of the ring from the sound circle in the large amplitude.

We found that some people in the market to sell low-quality magnetic fluid, some companies have been trying to find out the unpleasant incident. In order to prevent more fooled many customers. We have the inferior magnetic fluid sampling analysis, and to the user provided some data and comparing the performance report, to illustrate the huge difference of brand-name magnetic fluid and we are agents of the Ferrotec magnetic liquid.