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将单面或者双面涂有磁层的米拉(Mylar)材料制成磁盘;在装有磁头的底板上旋转,可用来作为一种信息存储装置。它的示意结构如图所示。当盘子转动时,盘子和底板之间形成25微米的间隙。在底板下面接有一根带有阀门的管子,控制阀门可以改变吸入空气的量,也即改变了盘子本身和底板之间的距离。这个装置的主要特性参数是盘子和底板之间的间隙。严重影响间隙大小的因素是:盘子的材料和它的厚度,轮毂下表面和底板之间的距离,轮毂半经和进气口半径之比,盘子的角速度,从进气口吸入空气的速
A magnetic disk made of Mylar coated on one or both sides can be used as a magnetic disk; it can be used as an information storage device by rotating on a magnetic head-mounted base. Its schematic structure as shown. When the plate is rotated, a 25 micron gap is formed between the plate and the plate. Underneath the base plate is a tube with a valve which changes the amount of air drawn in, ie, changes the distance between the plate itself and the base plate. The main characteristic parameter of this device is the gap between the plate and the base plate. Factors that significantly affect the gap size are the material of the plate and its thickness, the distance between the undersurface of the hub and the soleplate, the ratio of hub half-life to the radius of the intake port, the angular velocity of the plate, the speed at which air is drawn in through the intake port