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首页> 外文期刊>Proceedings of the IEE - Part B: Radio and Electronic Engineering >Electromagnetic delay networks for digital storage
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Electromagnetic delay networks for digital storage

机译：用于数字存储的电磁延迟网络

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Electromagnetic delay systems are very attractive for digit pattern storage in electronic computing equipment. No transducers are required, so that the efficiency can be made high, and only familiar components are used. It is well known, however, that neither the continuously-wound nor the lumped-constant type of conventional delay line can be made to give sufficient resolution to store more than perhaps 15 digits without great difficulty. A method of design for lattice-type delay networks is described, depending on the Fourier transform of the required pulse response, which enables a network to be designed with an output of the optimum form. A valve is used for inversion so that a minimum number of components is required and both input and output are single-ended, thus overcoming the usual disadvantages of the lattice arrangement. A practical design is outlined for a network with a delay of 54 microsec and sufficient resolution to enable 27 digits to be stored at a digit frequency of 500kc/s. This employs no more than 36 inductances and gives an output of about 30 volts for an input current pulse of 6 mA. A similar arrangement has been made to store 40 digits, and there is no reason to believe this to be the ultimate limit although further increase would probably be uneconomic.
机译：电磁延迟系统对于电子计算设备中的数字模式存储非常有吸引力。不需要换能器，因此可以提高效率，并且仅使用熟悉的组件。然而，众所周知，常规延迟线的连续缠绕或集总常数型都不能给出足够的分辨率来存储多于15位的数字而没有很大的困难。根据所需脉冲响应的傅立叶变换，描述了一种用于晶格型延迟网络的设计方法，该方法可使网络设计为最佳形式的输出。阀用于反转，因此需要最少数量的组件，并且输入和输出均为单端，因此克服了晶格排列的常见缺点。概述了一种网络的实用设计，该网络的延迟为54微秒，分辨率足以使27位数字以500kc / s的数字频率存储。它采用的电感不超过36个，对于6 mA的输入电流脉冲，输出约为30伏。已经进行了类似的安排来存储40位数字，并且没有理由相信这是最终限制，尽管进一步增加可能会不经济。

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