主题：[求助]关于SpeaD上喇叭材料的几个问题

FEMM里面的材料库要少些,名称类似.

谁有材料库的TXT文档?如磁性材料和导磁材料的?

Cone Fo
The cone Fo is the standard compliance measurements for cones and edges. It is available from cone suppliers or can be measured using a standard Fo analyzer. It is important this measurement be taken under the same conditions that the speaker will be tested. Temperature and humidity can cause dramatic changes in this test because of the relative instability of rubber and foam typically used for edge material and moisture retaining cone materials such as untreated paper. This measurement is difficult to make accurately for very high compliance materials such as butyl or santoprene edge. Unsecured clamping around the entire edge, sag, and conflicting resonance of the driving speaker can all contribute to errors in this test

Sd
The cone area of the speaker. This is defined by measuring from the diameter from the inside 1/3 of the edge roll, and then calculating area.