关于扬声器磁铁退磁问题的若干探讨

Several Discussions on Demagnetization of Loudspeaker Magnet

本文探讨了扬声器常用磁铁退磁的问题,介绍了钕铁硼磁铁高温退磁及铁氧体磁铁低温退磁的计算方法,分析了磁铁性能标准与实际产品性能差异的原因,提出了一些优化扬声器磁路系统设计的建议。

This paper discusses the demagnetization on common magnet of loudspeaker,introduces the calculation method of Nd Fe B magnet demagnetization at high temperature and Ferrite magnet demagnetization at low temperature,analyzes the causes of magnetic performance differences between the specification and the actual magnet products,and puts forward some suggestions for optimizing loudspeaker magnet system design.