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研究了计算机数据采集系统的接口电路.首先使用地址码$C5C8选通锁存器,锁存8位数据码,用数据码实现通道的选择.为了强调整个接口电路的设计方法和使用特点,在文章中给出了原理方块图和数据采集系统的整个软件框图.此外,也分析了 ICL7650放大器的应用.最后说明了在现场运行中,整个接口电路的使用情况.
The interface circuit of computer data acquisition system is studied. First, the address code $ C5C8 strobe latch is used to latch the 8-bit data code and the data code to realize the channel selection.In order to emphasize the design method and the use characteristics of the whole interface circuit, The whole block diagram of the principle block diagram and data acquisition system is given in the article.In addition, the application of the ICL7650 amplifier is also analyzed.Finally, the application of the whole interface circuit in field operation is illustrated.