| 摘要 |
A method for surface grinding for the material of a diaphragm is provided to improve a sound quality by mounting a surface grinded diaphragm to a conventional dynamic type unit such as a microphone or a speaker. A method for surface grinding for the material of a diaphragm(105) of a dynamic type unit includes the steps of: grinding one or both surfaces of the material of the diaphragm by using grinding material or sandpaper, wherein the dynamic type unit consists of a magnet(106), a moving coil(110), and the diaphragm; and processing the surface of material of the diaphragm with the shape including a circle, an oval, an unevenness, a crater, or a net. |
