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本文介绍一种能和国产 DJS-130电子计算联用的普及型数模和模数转换装装,适用于般模拟数据处理系统。模数转换的静态精度±0.2%内,转换速度30仟赫时12位,数模换的输出响应时间每伏400微秒。一、概述电子数字计算机一般祗能对数字量进行计算和逻辑判断,例如,在系统中对开关量或幅射一定的脉冲量,在计算机配有实时时钟时也能进行数码处理,而较大量的测量系统或控制系统中,它的原始被测量往往是模拟量。尤其主采用先进技术改造原有系统时,原有一次仪表输出大部分是模拟量,即标准的电压或电流
This article introduces a universal digital-analog and analog-to-digital conversion assembly that can be used with domestic DJS-130 electronic computing. It is suitable for general analog data processing system. A / D conversion static accuracy of ± 0.2%, the conversion speed of 30 kHz when 12 bits, digital-analog output response time of 400 microseconds per volt. I. General Electronic digital computer generally only for digital calculation and logic to determine, for example, in the system of switching or radiating a certain amount of pulse, the computer with a real-time clock can also be digital processing, and a large amount Of the measurement system or control system, its original measurement is often analog. In particular, the main use of advanced technology to transform the original system, the original output of an instrument most of the analog, that is, the standard voltage or current