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1.概述 A.D变換器作为数字計算机的轉入装置而得到发展,按其所具有的不同特性可分为两个系列,其一为能把模拟轉入高速地变換为数字量的,其二为能够精确地把模拟轉入用数字表示的数字电压表。尤其是近来由于对高灵敏度数字电压表的研究,而出現了一种所謂积分型数字电压表,它不仅能够克服最近处的信号以外的干扰,而且特別能够克服工业电流的影响。因而与普通模拟計比較,就沒有外界干扰所带来的麻煩,使用起来很方便。
1. Overview AD converter as a digital computer into the device and development, according to their different characteristics can be divided into two series, one is able to turn analog into high-speed digital conversion, its Second, the digital voltmeter can accurately turn analog into digital representation. In particular, recently, due to the study of high-sensitivity digital voltmeters, a so-called integral type digital voltmeter has emerged that can not only overcome the interference outside the nearest signal but also overcome the effects of industrial currents in particular. Therefore compared with the common simulation, there is no trouble caused by external interference, it is easy to use.