金属磁带是近几年出现的一种新型磁带,与过去的γ-Fe_2O_3磁带和 CrO_2磁带相比,它的最大输出大,失真小,高频特性好,不易饱和。但缺点是不能用以往的磁带录音机重放。金属磁带用的磁性材料不是氧化铁,而是未经氧化的金属粉末,因此,磁通密度和矫顽力比CrO_2磁带大一倍左右,也就是输出提高了6dB。但是,矫顽力加大以后,怎样选择合适的消音磁头材料,就成为很重要的问题。不仅如此,录音磁头也必须能够通过较强的信号才行,这些都是金属磁带能否实用的关键。金属 Compared with the past γ-Fe 2 O 3 magnetic tape and CrO 2 magnetic tape, the metal magnetic tape is a new type of magnetic tape which has large output, small distortion, good high-frequency characteristic and difficult to be saturated. But the disadvantage is that you can not use the tape recorder replay. The magnetic material used for metal tape is not iron oxide, but non-oxidized metal powder. Therefore, the magnetic flux density and coercive force are twice as large as that of CrO_2 tape, that is, the output is increased by 6dB. However, coercive force increases later, how to choose the right muffler head material, it becomes a very important issue. Not only that, the recording head must also be able to pass a strong signal Caixing, these are the key to the availability of metal tape. metal