如果有一种新磁带出现,就需要开发一种与一种相适应的磁头,对于放磁头,从隙缝损失的角度出发,需要0.3μm以下的窄隙缝磁头。VTR中使命的图象磁头,现在已采用0.4μm的隙缝,就是按此孜虑的,这是一次很难的技术,下面我们讨论一下关于记录磁头的问题,以前,记录磁头的隙缝是和记录波长没有关系的,根据效率观点、磁头的隙缝宽就好,化 If a new type of magnetic tape appears, it is necessary to develop a magnetic head compatible with one type. For a magnetic head, a narrow-gap magnetic head of 0.3 μm or less is required from the viewpoint of loss of a slit. VTR mission of the image of the head, has been used 0.4μm slit, which is according to this consideration, this is a very difficult technology, we discuss the following about the recording head, the recording head gap and record Wavelength does not matter, according to the efficiency point of view, the gap width of the head is better