TDC－2000集散控制系统磁盘机设计

主要介绍了ＴＤＣ－２０００集散控制系统用磁盘机的功能、设计原理。文中对串行双相位码的编码原理以及特点进行了分析，并推导出有关的计算公式和码的连接关系；提出了“全波形采样”原理和相位初存并－串转换原理，并通过物理实验证明了它们的可行性。文中对操作站与磁带机之间进行信息交换时，应答信号的性质和时序关系作了详细讨论。所有这一切是设计磁盘机取得成功的关键，亦为ＴＤＣ－２０００集散控制系统部件国产化做出了积极贡献。

Design of Magnetic Disc for TDC-2000 Total Distributed Microprocessor Control System

The main idea is the function and design principle of the magnetic disc used in the TDC-2000 Total Distributed Microprocessor Control System.The coding principle and feature of the Bi-phase are discussed in detail and the formulae and relationship between the code also presented. The principles of "the full wave sample" and the phase-lock parallel-series exchanging are given out. Its possibility is testified by the physical experiment.When the signals between the operator and the magnetic tape station are exchanged,'the charactor and sequence of the response signal are discussed. All these are the bases of the success in the design of the magnetic disc.It plays a active role in the domestic production of the part of TDC-2000 system.